It's unfortunate that you have had a run of bad luck on finding a FC which fits for you - are these FC's ones which you asked to join or are they ones that send out invites to everyone (if it is the latter then that's probably the answer right there). There is a quite good FC recruitment subreddit so why not have a look and see if there is anything there that catches your eye.

As far as FC drama is concerned remember that it is ideal if you try to sort it out in private chats with the person involved first. If that fails then escalate it within the FC if you think it is necessary. If the incident is serious then also consider reporting to SE or Discord (depending upon which platform it happened on). Remember that you have the ability to mute the person also.