Jimmy's inexplicable behavior ...
Jimmy gives up himself and his crew for murder and armed robbery to avoid getting popped for boosting vehicle? Whatever.
I know he's on a depressive, self destructive bender. But WTF? He hates his brother, his family, and his parents now too and wants to see them all burn just because he's such a fuckup himself?
I don't buy it. He didn't appear to hate his family, just himself.