My experience with leftists that I have been around and had discussions with is that they are, for the most part, delusional with regard to how they view the world. Rational thought and pragmatism is uncomfortable so they avoid it.
That has been my finding as well. They live in an illogical world of their own making. You can’t have a rational debate them because they believe things that are not only not true but couldn’t in your wildest fever dream be true.