There are social democrats in DSA who support expelling Bowman. That's what's so silly about the claim they're making. The fucking Congressional Progressive Caucus has a three-line whip. Literally anyone who understands political discipline in any context understands that you have to enforce your fucking line with your politicians. The only people who don't support that are people who legitimately don't want to change anything.

Ironically, the anti-sectarian group in DSA is the group calling for the enforcement of the definitely-not-a-line.