Honestly, I thought this had to be bullshit, but I read it...

In this article it says:

"The concept of mathematics being purely objective is unequivocally false, and teaching it is even much less so," the course states. "Upholding the idea that there are always right and wrong answers perpetuate objectivity as well as fear of open conflict."

I'm sorry, but unlike your English class, where color and colour are technically BOTH correct spellings, 1 + 1 = 2 and the square-root of 25 is exactly 5 are not "open for debate", nor are they - at least at the level taught in non-graduate school level classes - open to being re-interpreted and changed anytime soon!

If math was subjective - and open to debate based on your cultural heritage, or other factors - then we'd have never landed the lunar or martian explorations!

Now THIS is some LIBERAL BULLSHIT!!!