It is thanks to the comparative civilization (multiculturalism) folks that we’re even taught about Gougu Theorem.
The impetus for this was after WW2, prior to which you simply didn’t find things like “Asian Studies” from which knowledge of the Gougu Theorem came out from in Western Universities.
Ford Foundation was probably the biggest contributor to this.
This particular “Leftist math” thing in 2019 is a natural extension of such programs.
I think it’s an important effort, as ridiculous as it occasionally may sound, as even in 2019 you STILL find a lot of people who say “White People Created Math And Have Higher IQs And….” etc.