How to deal with aggressive men?

I'll give today's context. So today my brother ripped open an envelope which was meant for me and the letter inside tore as a result to which i told him either let me open it or use scissors. He came super close to me to raise his hand and would have done so if my mother dint intervene. Is this an ego issue? Anyway he told me if i want to be in one piece i need to shut my mouth and let him have his way. This is one of the many instances. I have never seen a positive healthy ego based man in my life. I just have had men with nasty temper issues and honestly i dont know if i can submit to this kinda behaviour my whole life. How do you deal with such behaviour when calm sensible statements dont work?