If the coach sucks and he has a kid on the team that sucks, then you need to get him fired. He has to go and be a daddy coach for town hockey.

I think unfortunately you have to leave, or risk earning a reputation as a nightmare parent. I've been taking my kid a little further from home for years avoiding the closest option because of the situation there. Would love the convenience of playing there, but not worth the angst. There are too many options in our area to let yourself become "that guy".

Overthrow is one word.
Sit in the stands and read a book instead.