The benefit of taking that particular avenue to improve oneself might be overshadowed by the potential downsides of having to deal with toxic people to get there. And that's a personal scale-weighing that everyone has to do for themselves. There's no objective right or wrong in that.
Everyone is toxic to someone. Avoiding every toxic person is just crippiling you socially, professionally. You have to meet challenges head on, or you are just lazy, and blaming the topic du jour. The ideal welcoming working group is a great goal, but we are humans, and always striving. To stop progress because its hard or annoying just shows your character.
I'm not known for my positive view of humanity, but I don't believe that's true at all. "Toxic" doesn't apply to anyone short of a true saint. It's meant for people who exhibit specific behaviors that undermine others' confidence, satisfaction, etc. If a person X who seems above average in collaborative and supportive behavior to everyone else has a single bad interaction with another person Y, does that make X toxic? Of course not. It probably means Y is toxic, and is projecting their own toxicity onto others. Who's the lazy one? Who's evading responsibility for their own outcomes? Whose character does that reflect on?
