Who's at fault here? honestly How did it get to this?

No.12067265 ViewReplyOriginalReport
https://www.popularmechanics.com/science/math/a33547137/why-some-people-think-2-plus-2-equals-5/
Incels will say we allowed too many women in STEM
/pol/'s favorite scapegoat, the jews, seem like a farfetched boogeyman.
Is it the corrupting of the academics by cultural marxists?
Is the seeping of truth relativity from the humanities breaking into STEM?
Russell was literally a socialist, but I could never see him write an essay like 2+2=5...
How did it get to this point?