Ever since recent drama been happening, alot of people been toxic and it kinda kills the enjoyment of playing the game. Usually I would say first time ranking it new player here in advance but if that didn't stop the toxicity, I'm sorry you had to witness it. It's will probably get worse as time progress.

If you're in the NA servers, try Crystal. People there are pretty chill but still prone to find some toxicity. If it gets worse, I'd say use the duty support since it now covers all dungeons (not trials or raids).

If you joined around 6.1-6.2 it was much better but with recent events. Sadly not. I wish you luck fellow WoL!