Dad [59M] and Mom [56F] were fighting and I [21M] intervened, now they're angry at me

I just graduated from college and I'm working remotely now because of the pandemic from my parent's home. They argue all the damn time. They were arguing a month ago and it got very scary with furniture and glass breaking and someone from our neighborhood called the police. No one got arrested. But I was so done with their behaviour that I packed my bags to leave and they begged me to stop. My younger brother [11M] also was crying and wanted to me to stay and I stayed for him.
Now today, my mom returned home from work and my dad was yelling at her because she didn't cook lunch for him before leaving for work. The sheer audacity of my dad really got to my nerves. While this fight was going on I was in a meeting with co-workers over video call and they heard as well. I exited the call and lost my temper at them. I told them that they were complete idiots and really unleashed a lot of rage at my dad for being such a misogynistic pig. I told him if he was hungry, he could have just asked me and I would have ordered something.
They in turn (including my mom) got mad at me and said that I get angry easily and that I am the problem (is this gaslighting?) and I swear I don't get them. I really feel for my younger brother because he's always so scared with this and doesn't know what to do. Now my parents want me to apologize to them for being "disrespectful". They then make up and the cycle continues while I'm labeled as the crazy one for telling them to knock it off.
This is a re-occurring theme and it's affect both my mental health and also my career because my co-workers think I live with crazies. I want to leave my house now, but I also want to be there for my younger brother because he's honestly traumatized. I felt that since I intervened in such a threatening manner while my parents fought and really escalated the conflict, that this should deter them from ever starting one in the future. Am I in the wrong here? Sometimes I feel that I do lose my temper but honestly it's because of their sheer lack of sympathy for how their constant fights affect not only me but my younger brother. My little brother sometimes goes into the corner of his room and starts crying when they fight. When I saw that today I stormed into the room and honestly lost it at them.
What can I do? I want to leave but I can't leave my brother with these crazies. I've told them that I want to leave this week and they start making excuses like it won't happen again or don't worry this is normal in every house (this irks me the most because they normalize this kind of crazy behaviour). They don't want me to leave and they're likely to create a scene.
I have never been so lost in my life. I need some advice.
tl;dr: parents fight all the time, I want to leave, but have to stay for little brother. What to do?


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