It's ahistorical and ignorant.
Maths and science belonged, for a long time, to the Islamic world.
Indigenous people in my country had and used mathematical concepts, and scientific ways of managing fire risk in the environment. They engineered.
Some of the world's most accomplished mathematicians were/are Indian, or Asian.
Nonsense is nonsense, no matter who says it.
What may be accurate to say is that scientific and mathematical institutions reflect the levels of racism (or other isms) present in society at large.
Honestly, imagine the laughter if I claimed that the concept of science was sexist, or mathematics was against the working class. I'd be ridiculed as a crank.