The wider thread is, however:

Kick out Republicans and establishment Democrats.

Voting for fascist-enablers isn’t slowing them down.

Given the context NABDad’s comment doesn’t seem to be limited to primaries.

Yikes. Did you at least have a working display port or something?

The spoiler effect is an inherent part of first past the post voting. It’s geometry.

Voting for progressives only works in primaries.