The USA is purging intellectuals as well through outrage culture, online mobs, and the weaponization of political correctness. Both the far right and far left do it routinely to their advantage, they both seem to think the ends justify the means. Whoever has the loudest megaphone and can effectively stir up a sufficiently large outrage mob is the winner. Facts do not matter, evidence can be deemed "offensive" and is…
While there is some silencing of people and view points, I don't think it is not fair to those in Turkey to consider it on the same level as their purge. Outside of a few areas dealing with the social sciences, the worst an expert in their field is going to have to deal with is government funding cuts.
I can point out some problems with the way we currently do science, including funding issues, replication issues, unfair amounts of criticism based on how socially agreeable a finding is, and in very rare cases people's employment being at risk for 'wrongthink', but even the worst cases of these barely even compare and no one is ending up being imprisoned over it.