The writer is correct. I have to say, before Trump I had always believed that facts and reason, if presented effectively, would prevail over the long term. But it's clear that for a certain segment of the population, logic is not enough to overcome emotional attachment.
Trumpers have bought the entire package their brash, authoritarian idol has given them. They have true faith and shall not be moved. Like religion-based extremism, fascism, or any other purist cult, Trumpism requires that its adherents stop thinking critically. The leader is not to be questioned. Maybe this dogmatic description doesn't apply to every person who votes for Trump, but it fits a good many.
I'm not sure where we go from here.