I hope the situation works out for your daughter...but I stand by my perception you are askewed in this situation.
You expect me to believe that:
1. The Dad is such an "a-hole" that his friends even say it about him...YET not only are they still his friends, but YOUR own brother is still his friend.
2. Your Xs friends tell you all about how they feel about him.
3. That you wrote "people you barely know"...when in reality they are people who know the child/situation/you very well (if they are Dad's friends and your own brother <child's uncle>).
You exaggerate, you come off hostile & bitter, and your refusal to consider therapy- while simultaneously telling us how terrible it is for your child.
You
Do Not appear to want genuine advice/direction...you appear to want to complain and tell your tales of Woe, shifting blame any and everywhere but with yourself.