I would argue there was. You’re using “Accepts conservative thoughts uncritically” as the barometer here. Conservative thought just tends to lose out when examined critically, so the right seeks to compensate by authoritarian measures.
See heavy handed, top down efforts to suppress climate science, gender and trans science, research into effects of diversity, etc.
So which is it now? Is it newly found diversity of thought or has it always been this way? I don't remember the last time the president bullied universities the way this one is doing, fwiw.
Was there?
Academia has been this way for decades.