Thanks for the input, even if you think I was being over-sensitive, lol. Perhaps I should have mentioned that I felt my "spider senses" tingle at the first jam session as well.
Try getting into a club by trashing someone's bike. Works great.

(If you don't understand that, apply it to a hobby or culture you're better versed in. Same result.)
Anyways, after some honest discussion the drummer and I are moving on. He might still jam with them and I hope he does.
I'm done here but please continue to opine for someone's future reference. ✌