My brother (23), for most of my life has always had issues controlling his anger. However, this past year it has gotten very exhausting and I'm starting to get fed up. Fed up to the point where I don't even like talking to him anymore. Every conversation (and I mean the most simple convos) will lead to him being angry. Anytime we disagree on something so mundane, he will get angry and start acting childish. He resorts to name-calling, often using profanity and derogatory slurs, including ableist language and gender based insults toward my sister (25) and me. Every time we say something back to him that slightly challenges him, he will just start name calling and fully acting like a child. If you disagree with him, he blows up. If you call him out, he flips. I can’t even have a normal conversation with him, it always turns into him calling me dumb and stupid .He doesn't get physical anymore, but when he was younger he used to punch walls. This afternoon, my sister and I were hanging out in my room when he came in to say hi and said he wanted to show us something. We said hi back, and then he made a face at us and mocked us. And all we said was hi back and it triggered him to mock us?? he then whispered under his breath, but loud enough that we can hear him calling us derogatory names and says "you think you're so special" and stormed out of the house. I honestly cant tell if he just hates us or what, because whenever we go out in public he's always nice and talkative to strangers.
Im not sure what to do. This is mainly me wanting to rant to strangers that have similar experiences to mine. I know that therapy would be the best bet to help him, but he is defiantly not the type to talk to anyone about his feelings. My parents are middle eastern and don't believe in it either. I feel bad for his future gf/wife.
TL;DR; : My brother has anger issues and I’m starting to resent him for it
Thank you for reading and any advice or kind words would mean a lot.