This isn't about maths it's about a pathological resentment of the west. There's not a shred gratitude, not recognition of the benefits that Western science has bought in terms of medicine, scientific methodology, agrigculture, industry. I'm not making it up, he says so himself. "Many people agree that science has led to the wrong kind of technological products. E.g. antibiotics, chemical fertilizer, cars" Resentment (he hates the west and it's achievements), arrogance(he considers himself beyond criticism) and deciet(he's misrepresentong history and mathematics) . That's an incredibly toxic combination. When one is as bitter as he is yet basking in privilege conferred by academic and social standing, then there's something wrong with that person. India has eliminated famine, due to western scientific methodology and the work of Norman Borlaug. India eliminated Smallpox and Polio. In 2016 the number of people living in extreme povertry 124 Million. By 2022 that number will be 15M. That's down to increased wealth which comes with liberal trade, improved schools, medicine and education, all which rest on Western modes of thought. His motivations are clearly not to do with mathematics or science but to related to his politics, which is to see the West as a fundamentally repressive dominant culture, hence the obsesssion with a very one sided view of colonial history. There's no sense of dialogue, looking at the good points and the bad points, and coming to an agreement. To engage in dialogue, as far as he is concerned would be to enter into the process by which western ideas as a dominant culture (as he sees it) is maintained. In postmodernist identity politics, there is no dialogue between various identity groups because they are locked in a perpetual struggle for power. Yet education is a fundamentally dialogical process and this is where his Christian-phobia comes in. Logos means "reason" in a Greek and in scripture, also as Word- as in the word of God, so spreading the word of God has always been dialogical process. This is why, for example, missionaries went to extraordinary lenghts not only to learn languages, but to write them down, And hence the origins of education and schooling in the West being rooted in Christianity and the church. He is quite aware that in attacking Christian thought he is attacking the basis for Western civilisation. Again excluding the possibility of a including other religions in the process except as victims of the dominant culture, as he sees it. He's asking us to accept that there are no universal truths but at the same time insisting that we accept his Marxist interpretation of history. He's not intrested in maths, but he is very intrested in assaulting the basis of western civilisation. Academia, certainly the humanisities and social-sciences are arguably the most far-left and politically corrupted institutions in our society and permeated by a postmodern doctrine so the idea that he is a vicitim of bias is out of the ball-park as far as I'm concerned.