My brother was like that as well. I wouldn't take him in here because he wouldn't be able to find a job. Just lived off my parents until they died. He's now back in school learning to become a game programmer. The only time he talked to me was with dealing with the estate. (I live in a different state far away from him.)
I know it's hard when you're the parent and your kid now hates your guts. You don't know what you're going to do if something bad happens to them. It's hard to detach with love. But some kids need an "oh ****" moment before they mature. Maybe your son is one of them.
Big hugs.