I think in this case you need to show how foreign you actually are from a mentality point of view. You still have the option of just flat out telling him he is wrong to order you around like this and you don't appreciate it. I would back him into a corner until he throws up his hand and tells you it's just a "cultural misunderstanding". I think if he were dealing with people of different ethnic backgrounds he might be even more of a bully, which he sounds like he is anyway. He expects people to obey him in the end no matter what, with some it's expected more quickly and with others more slowly. Whatever the case get him to back off or if he doesn't then you're in a toxic work environment. You should leave as quickly as you can if that's the case.