Gotta toe the party line, or else the Leftists blow a gasket. They really can't handle alternative views.
I have, on occasion, tried to explain to them, that I know their position. I can explain their position. I can find points in their position that I find somewhat valuable. I then go on to explain to them that I don't think they have the slightest idea what the Conservative position might possibly be. I've been met with a smug, "I don't have to know your position. Why should I bother? Your position is wrong."
The writer is spot on about their unwillingness to listen to facts. I think it is because facts threaten their worldview. Most adults would rather die than change their view of the world.
Fortunately, those with a leftist world view seem to be only a small minority of the population. Unfortunately, they control the MSM, the education establishment, and Hollywood.