I don't think most leftists are looking for an ideologically pure candidate, they're looking for someone who will actually represent the people. The Israel issue is a great example of this disconnect; amongst Dem voters 90% are against supporting Israel, and yet there's only a handful of Democrat politicians who have are agaimst sending Israel military aid. It's really not a high bar for candidates to clear, and yet establishment Dems just keep SPRINTING to the right.

Leftists arent their own enemies, their enemies are neoliberals.