My experience with most radlibs (individual people, not public political figures) has been that they are people who get that capitalism sucks, but their brain is so rotten and stuck in the liberal mindset they can't see anything past liberalism. They constantly have meltdowns and are incapable of seriously thinking of any poltitical action past voting and posting on social media. Their worldview is very contradictory and broken.

These kinds of people often don't remain radlibs for long because it's a very unstable way of being.