"Progressives seek to unite, not divide."

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You can tell by the whole "He's got one more buck than you, so he's an evil rich person who should be forced to give up his stuff, and besides he can afford it" thing lefties have going. Real unifying stuff.

The Bircher thing, that's got legs. Trumpism -- protectionism, isolationism, distrust of anything not them -- is very reminiscent of Bircherism.