Can't stand my BF family

Anyone else hate their SO family? Like these people are insane his brothers are so overweight all they do is talk shit and play video games they are nasty rude people, his mom is something els she's always on Xanax and acts as if she's the shit she encourages their nasty behavior she says that she thinks he shouldn't be with me and worst of all they hate me like they literally stress my BF out constantly telling him I'm no good I'm a bitch to break up with me his little brother is the worst he yells at him all the time to dump me he's also 26 and has never been In relationship but acts like a know it all it's been like that since we first started dating they don't even know me, I tried to be nice but after awhile I just stay away I never go to his house cause I'm so uncountable there and he doesn't get it, I'm at my wits end with I love him but I'll never be able to coexist with his family.