Are there even any Scientific American subscribers who would vote for Trump? Looks like they're just trying to capitalize on his crazy by getting new subscribers.
Anecdotally, a lot of the sorts of people I've met who would subscribe to SciAm are not particularly politically conscious and subscribe to the "enlightened centrism" / "both sides" kind of philosophy.
Why did you reframe what the parent said? This tone is usually used to make an implicit point beyond or in contrast to the original statement, but I can't identify it in this case.