Seder is the kind of person who, though I disagree with heavily as a Marxist, I could imagine them being an ally when push comes to shove.

Essentially, if bullied by a sufficiently powerful left, I would not be surprised if he threw his support behind socialists rather then siding with fascists.

Though I only think that’s a potential outcome, not a concrete one. Libs are famously untrustworthy and nasty when scratched.