I'd call it more frustration that wild kids can ruin the relaxation they paid thousands for rather than hostility.
Never seen anyone get physically or explicitly verbally abusive about kids. More likely people will just talk about the parents being incapable to control their kids, or purposefully ignoring them regardless of how they act. The parents of wild children seem to just let them roam so as not to spoil thier vacation not caring it effects others.
Calm well behaved kids are welcome anywhere including formal nights in the dining room or shows in the theater.