Better pay? Yes. Better benefits? Yea. Less chaos? Yes.
Less toxicity? Unions give the workers a bigger say. That’s it.
How toxic are your coworkers? If they’re toxic … unionizing won’t help. If they’re not toxic … unionizing still probably won’t help.
Unions are about pooling together for a better negotiating position.
That doesn’t make anything less toxic.
For example, will the union support using H1B visa workers? Amazon had a lot of H1B tech workers. That could get very toxic very fast.