The correlate to this is that you have NEVER seen a leftist voluntarily leave the US to move to Venezuela, North Korea, etc. They are full of shit and they know it. They are just angry about their economic status, but rather than channeling their anger appropriately, e.g. as motivation to do better in life, they would rather just virtue signal and at least feel successful in some sense on the social hierarchy, i.e. they are the most woke among their peers.

If they were to move to Venezuela, where the revolution has already taken place, not only would they be poor, but they couldn't virtue signal anymore and so wouldn't feel elevated on the social hierarchy either.