I think that a lot of studies that support the lefts naeative have been fabricated over the years.
Kinsey’s “revolutionary” reports on sexual behavior were almost entirely fabricated to suit his agenda. that’s one example you can cite where fake science has been used to further the goals of the critical theory/cultural marxist crowd.
http://www.crisismagazine.com/2012/kinseys-secret-the-phony-science-of-the-sexual-revolution