Earlier quoted context omitted.
You're referencing one weird out of context quote (which sounds like it was since clarified) from one nonprofit who got funding from the Gates Foundation. It seems somewhat disingenuous to make the claim that the Gates Foundation thinks Math is White Supremacy based on that.
The Gates Foundation is responsible for doing due diligence of those it invests in. Investing one million dollars is endorsing the organization's ideals. Out of context? Do you realize how many times the phrase "White supremacy" shows up in their manifesto "A Pathway to Equitable Math Instruction"? They reference "white supremacy" a total of FIFTY TWO times[0]. [0] https://equitablemath.org/wp-content/uploads/sites/2…
I don't think that the workbook is saying "math is white supremacist" but instead "it is possible for a math teacher to accidentally not serve their nonwhite students well if they aren't careful".
So I'm unconvinced it is reasonable to make the claim that "the Gates Foundation thinks math is white supremacist".
I actually also don't subscribe to "if you give an organization money they you are a proponent of every idea they have", pretty clearly since the big tech companies donate to politicians across the aisle they can't possible be said to be advocating for both a belief and it's opposite.