This wasn’t written to Trump supporters...This was written to commie liberals to convince them that we Trump supporters are just as ignorant on the issues as they are to the end that they have a legitimate opinion on the issues...
Bingo!
Yes, it’s just virtue signally.
The article is no different than thousands (probably tens of thousands) of other articles just like it where the self-identified elite tell each other how smart they are and how stupid and/or ignorant everyone else is.
Verbal masturbation.