Just part of his desperate need for symmetry.
He had nothing to address the actual issue, as usual.
Bad science, mostly from the left, is easily one of the more corrosive things in our society.
It hurts NASA, industry and medical care, as well as education.
But that garbage is no worse than creationist cultists, who are mostly at least nominally conservative in their voting. But it should be noted that their stuff doesn't get into text books.
Ed