Based on observed behavior with these groups, and the total lack of respect for the rights of others and lack of supervision demonstrated by their representatives, I think the OP showed great restraint is using the terms 'hatefual and monsters'. Those criticizing his use of those terms have obviously had no experience with the hateful little monsters.....and I too, have used an abundance of restraint. Calling a spade a spade is honesty, and shouldn't be denigrated. The next step is to let Disney know they will not be in your plans as long as they permit and evidently condone this type of behaviour.