Bjj & kickboxing can become useless in street fights. Be ready to run for your life at any moment

This isn't true because most modern humans are so fat you could dodge their punches easily. You can also knock them off their feet with little effort considering they are shaped like Humpty Dumpty. Also your martial arts knowledge absolutely will help assuming you aren't mentally weak. You should live a peaceful life and abhor violence. But if you need to defend yourself tap into your primal male warrior spirit. Also I'm more worried about my own Gov police and military than anyone else. You can't run anywhere from them because they enforce the king's will upon all of us who are "squatting" on the nobles' land. Andrew Tate for example. He has to worry more about the organized criminal gang called Gov. He doesn't have to worry so much about average criminals.
The fact you even bring this up proves how useless laws, police, and Gov is. If you're really paranoid then open carry I guess. Never be in the company of women either because they are useless cowards who will always be in the way slowing you down. You won't be out and about in the first place if you're a hikkomori type at home with your waifus.
You also prove why it's a logical choice to be a celibate monk. Why would you risk bringing new life into this world to constantly worry about being robbed or something?
Finally if you do get in a fight and die so what? At least you're finally free from taxes and a cucked feminist world. Why fear death? The goal of all life is death.