Thinking this is about science per se betrays a very naïve understanding of the political dynamics involved. It's quite easy to come up with examples where the official progressive position is nonscientific; Lysenkoism, for example, is as popular in left-leaning politics as ever (in the context of human biology). I can come up with plenty of other examples, although stating them here is guaranteed to draw some administrative ire.

In reality, institutional political alignment is just a natural equilibrium outcome of a political process with pork-barrelling as a feature (which is almost all of them).

> It's quite easy to come up with examples where the official progressive position is nonscientific; Lysenkoism, for example, is as popular in left-leaning politics as ever (in the context of human biology).

You believe the left believes children of parents with amputated arms will be born with amputated arms, that genes don't exist, that any species can be changed into any other species at the genetic level by manipulating only environmental conditions, and that random mutations do not occur?

Who do you think believes this? Name specific people who aren't irrelevant.