I think I would not go see that side of the family until you know for sure that the mean brother is not going to be around. I dealt with one like this and the first time I knocked him out. That did not help much. I have not visited that side of the family since. If they want to see me they have to come to my place and HE is not allowed to set foot on my property. I hope it gets better for you. Sorry your daughter had to see and hear all of that.
I am with you on that part JB. IF I was there he may have found himself face down on the carpet in cuffs. But I feel what she did by leaving was more of a statement.
FarSeer I would not want your daughter to miss out on Christmas with her grand parents this is why you simply tell them they need to come to your place for Christmas for now on WITHOUT that jerk. If they do not want that and can not live by your rules so they are not drinking then you may be better off without them.
This reminds me of a saying I heard once. "If you give a relative $20 and never see them again is it money well spent?" We can not pick our relatives but we can choose which ones we associate with.