My money's on the latter. There's nothing a political fringe group hates more than the slightly different.Quote from Mockingbird »No. That would constitute a protest vote or blind faith in ideological purity, which is the only vote they've sought since Ralph Nader (meaning ever). If I voted Green I would join the party and either work to clean out their ranks so this is at the least brought back down to earth along with a more rigorous platform... or get kicked out of the party for spreading ideological impurity.
EDIT: At least on the left. The alt-right all seems like one big happy family. Never really noticed that distinction before.