Left-liberals like to imagine themselves as being dissenting outsiders battling a privileged establishment. The reality is that left-liberals themselves form an entrenched wing of the political establishment. The self-image is bogus.
They form the elite in the hallowed halls of education. When you do not repeat their dogmas, you are uneducated. It doesn't matter that your brain is as knowledgeable and mentally agile as theirs-- if you do not accept their dogmas, you're essentially brain dead. I have noticed a trend among the left to never give an ounce of credit to their political opponents. To do so would put their status at risk.