Well they already made a video game of "The Warriors", only they called it "River City Ransom"
For years my friends and myself have been calling this "The video game movie which came out before they had video games", with large groups of identical themed opponents, a huge area they have to fight their way across, for a specific goal, even an in-game explanation for a soundtrack, it's pretty dead-on for a video game translation.
No. but we do have lots of Neo-Nazi Hate groups and Black Separatists drug dealing grouts to keep your interest. And you can play either of these two groups as PCs.