Simple answer, Liberals, Leftists, Marxists, etc. have ZERO ABILITY or DESIRE to ever listen to or consider BOTH sides of an argument. In other words they are absolutely CLOSED MINDED.
Sometimes it’s fun to poke at them to see just how far they can be spun up, but usually it’s a colossal waste of time.
Liberals and leftists have been deeply brainwashed by the mass media as well as universities.
That brainwashing has been done by masters of the art.
De-programming brainwashed people is very difficult at best—not a task for amateurs.