Phil O´Sofy Toobe is great leftist channel. I do not agree with everything in his videos, but that is not because I disagree with him on principle – I disagree with him on practicality. In short, I think we are fucked beyond hope, because human race as a whole is irredeemable and this prevents sensible implementation of leftist policies on greater scale.
In this video he tackles some of the whats and whys behind science denialism. I recommend many of his other videos – and there realy are many. I still haven’t seen them all.