Sovereign Citizens... acting as assistance of counsel or practicing law without a license?

The sovereign citizen movement is still alive and well. Some merely argue with Police regarding their driving without a license and driving vs traveling.. However, others actually attempt to play licensed practicing attorneys in the courtroom/zoom court rooms, which in many cases, causes more harm to their so called client. This common law follower has attempted to act as assistance of counsel to the detriment of his alleged client.