Because he's brown, complains about racism and they're the NDP.
Charlie Angus is quite the cunt, and does a bunch of dishonest virtue signalling and is ridiculous when it comes to the natives but at least his racist virtue-signalling is in line with the party values.
The thing to understand about Singh winning that convention is that they wanted their own Trudeau, only with racism rather than sexism as his defense.
They lost all those seats for a reason.