Botched Uninstallation of Longhorn - completing uninstall

I am trying to uninstall Longhorn from a High Availability K3s Cluster with embedded etcd. I seem to have botched the uninstallation somehow, as Longhorn and its associated namespaces have been stuck in the Terminating state for more than a day.

Attempted Solutions: I tried all three methods on the longhorn documentation, of which all fail. I cannot uninstall longhorn using a helm chart as I never installed longhorn through helm in the first place. Uninstalling longhorn using the kubectl also fails to create job.batch/longhorn-uninstall because the namespace longhorn-system is in the Terminating state. Editing the CRDs and finalizers, as per the troubleshooting documentation and the following site (Longhorn Namespace Stuck Terminating - Delete Longhorn from Kubernetes Cluster) also do not fix the problem of the system terminating, as in both cases, there is no change. Using the script from github (cleanup.sh) also fails to terminate longhorn, as it fails to find any of the resources.

Debugging information: The query kubectl get namespace longhorn-system -o json gives the following results:

{
    "apiVersion": "v1",
    "kind": "Namespace",
    "metadata": {
        "creationTimestamp": "2022-10-31T20:09:45Z",
        "deletionTimestamp": "2023-01-26T18:17:03Z",
        "labels": {
            "kubernetes.io/metadata.name": "longhorn-system",
            "name": "longhorn-system"
        },
        "name": "longhorn-system",
        "resourceVersion": "41929420",
        "uid": "f1c78184-4613-4f9d-939d-13947ac8befa"
    },
    "spec": {
        "finalizers": [
            "kubernetes"
        ]
    },
    "status": {
        "conditions": [
            {
                "lastTransitionTime": "2023-01-26T18:29:35Z",
                "message": "All resources successfully discovered",
                "reason": "ResourcesDiscovered",
                "status": "False",
                "type": "NamespaceDeletionDiscoveryFailure"
            },
            {
                "lastTransitionTime": "2023-01-26T18:17:27Z",
                "message": "All legacy kube types successfully parsed",
                "reason": "ParsedGroupVersions",
                "status": "False",
                "type": "NamespaceDeletionGroupVersionParsingFailure"
            },
            {
                "lastTransitionTime": "2023-01-26T18:17:51Z",
                "message": "All content successfully deleted, may be waiting on finalization",
                "reason": "ContentDeleted",
                "status": "False",
                "type": "NamespaceDeletionContentFailure"
            },
            {
                "lastTransitionTime": "2023-01-26T18:17:27Z",
                "message": "Some resources are remaining: engines.longhorn.io has 2 resource instances, nodes.longhorn.io has 5 resource instances, orphans.longhorn.io has 1 resource instances, replicas.longhorn.io has 4 resource instances, snapshots.longhorn.io has 3 resource instances, volumes.longhorn.io has 2 resource instances",
                "reason": "SomeResourcesRemain",
                "status": "True",
                "type": "NamespaceContentRemaining"
            },
            {
                "lastTransitionTime": "2023-01-26T18:17:27Z",
                "message": "Some content in the namespace has finalizers remaining: longhorn.io in 17 resource instances",
                "reason": "SomeFinalizersRemain",
                "status": "True",
                "type": "NamespaceFinalizersRemaining"
            }
        ],
        "phase": "Terminating"
    }
}

The query kubectl api-resources --verbs=list --namespaced -o name | xargs -n 1 kubectl get --show-kind --ignore-not-found -n longhorn-system yields the following information.

NAME                                                                     STATE     NODE   INSTANCEMANAGER   IMAGE   AGE
engine.longhorn.io/pvc-1886524a-5ba0-459d-9d51-b8044fec3057-e-344e3d26   stopped                                    64d
engine.longhorn.io/pvc-5aca06f9-adf1-45c8-b11d-6e79d9719001-e-79f24cb7   stopped                                    64d
NAME                       READY   ALLOWSCHEDULING   SCHEDULABLE   AGE
node.longhorn.io/master0   False   true              True          86d
node.longhorn.io/master1   True    true              True          14d
node.longhorn.io/master2   False   true              True          86d
node.longhorn.io/worker0   False   true              True          70d
node.longhorn.io/worker1   True    true              True          70d
NAME                                                                                         TYPE      NODE
orphan.longhorn.io/orphan-010ee0d16422c151e7e039e27fe2306815361596fa3f8b6cccc8a601b673e429   replica   master0
NAME                                                                      STATE     NODE      DISK                                   INSTANCEMANAGER               IMAGE                               AGE
replica.longhorn.io/pvc-1886524a-5ba0-459d-9d51-b8044fec3057-r-89dfabab   stopped   master2   c5a7e70d-09d8-43a2-9ba3-d5b65eb12b34                                                                     13d
replica.longhorn.io/pvc-1886524a-5ba0-459d-9d51-b8044fec3057-r-a6881548   running   worker1   2d7f16e8-f11b-40e8-8935-7f0559f7674e   instance-manager-r-8ccf914f   longhornio/longhorn-engine:v1.3.2   16d
replica.longhorn.io/pvc-5aca06f9-adf1-45c8-b11d-6e79d9719001-r-52b5a290   stopped   worker1   2d7f16e8-f11b-40e8-8935-7f0559f7674e                                                                     31d
replica.longhorn.io/pvc-5aca06f9-adf1-45c8-b11d-6e79d9719001-r-8f0ae6c9   running   master2   c5a7e70d-09d8-43a2-9ba3-d5b65eb12b34   instance-manager-r-672003dc   longhornio/longhorn-engine:v1.3.2   13d
NAME                                                        VOLUME                                     CREATIONTIME           READYTOUSE   RESTORESIZE   SIZE          AGE
snapshot.longhorn.io/887f9621-5417-40b3-8999-c2695d5585d7   pvc-1886524a-5ba0-459d-9d51-b8044fec3057   2023-01-12T21:07:46Z   false        10737418240   312860672     13d
snapshot.longhorn.io/8f11c48b-da51-4124-80b8-1316db88eb01   pvc-5aca06f9-adf1-45c8-b11d-6e79d9719001   2023-01-12T21:21:54Z   false        21474836480   20096512000   13d
snapshot.longhorn.io/b4c31fe7-5ff5-4881-9cd8-b22fc73798bb   pvc-5aca06f9-adf1-45c8-b11d-6e79d9719001   2023-01-12T21:38:23Z   true         21474836480   102400        13d
NAME                                                          STATE       ROBUSTNESS   SCHEDULED   SIZE          NODE      AGE
volume.longhorn.io/pvc-1886524a-5ba0-459d-9d51-b8044fec3057   attaching   unknown                  10737418240   master0   64d
volume.longhorn.io/pvc-5aca06f9-adf1-45c8-b11d-6e79d9719001   detaching   unknown                  21474836480             64d

Attempting to manually delete any of the items described also failed. All APIservices have Availability as TRUE.

What do I do to resolve this problem? I will provide any more information needed.