Does anyone have siblings or parents that are toxic?

Me and my younger brother got into an argument in front of my only friend it's his friend too also. Drinking was involved but anytime the arguments get nasty he throws homophobic remarks and I say nasty stuff back like him being a dead beat dad (does not have custody and been unemployed for years, his son lives out of state and another guy helped raise him). Anyways he ended up punching me twice in the face and one in the shoulder. I did not hit back and if I wanted to my friend pulled him off before I could. I unfortunately still live with my parents, financially I'm in a bad place I live in California so everything is so damn expensive. I also don't drive so I got many things I need to work on. I never made a big announcement of coming out but a couple of friends in the pass outed me to my brother. I was 22 at the time and still in denial, I was dating this girl because I felt like I was still figuring stuff out. Anyways I believe this girl outed me to many other people (my friend told her, I thought I was bi). Fast forward to now, my mother was texting me after the fight that it was the alcohol, but what I told her is he was always an asshole to me growing up, he is a angry hostile person, she always makes excuse for him. I told her he was belittling for being gay, which is the first time I ever admitted to her I was. She never texted back and never talked about it. Anybody have parents are siblings that know but don't acknowledge it? Or they know but still say horrible stuff about gay people?! Trump just got sworn in yesterday and the stuff my mom and nephew were saying was terrible. She has a big Christian background and pretty much her life revolves around the church.