Recent research has found that both IQ and genetic markers can predict political leanings towards liberalism and lower authoritarianism, suggesting our political views may be partly wired in our DNA.
Well, no shit, the entire strategy of conservativism at any point in history has been to prey on the dumbest demographic of humans and form them into a support base.
There are two kinds of conservatives 1) idiots 2) Grifters who prey on the idiots
Sure, and even now establishment Democrats are also quite conservative. Biden is just a Republican from 20-30 years ago. The main difference is he plays on the "enlightened centrist" type of idiot, rather than the religious/white nationalist flavor.
The party title doesn't mean so much as the actual policy and political philosophy.
Right, so "the conservative republicans led the abolition of slavery" is wrong. The progressive republicans did that. That does nothing to refute the point you're replying to, which only mentioned conservatives and progressives, not republicans and democrats.