"Respected research math is dominated by men of a certain attitude. Even allowing for individual variation, there is still a tendency towards an oppressive atmosphere, which is carefully maintained and even championed by those who find it conducive to success."
This is def consistent my personal experience... Not so much sexism (nowadays at least) but a strange mix of ageism, cult of innate 'genius', and gymnastics/ballet-like, endurance/bravado-focused ultracompetitiveness [1,2,3]. I increasingly blame Hardy's bestseller --and his abiding influence on mathematics culture worldwide-- for it.
(Also I can't believe such a diss was accepted in the first place... Sign of changing times.)
[1] https://mathbabe.org/2014/08/15/i-love-math-and-i-hate-the-f...
[2] http://listeningtogolem.blogspot.com/2016/08/the-invisible-p...
[3] https://mathbabe.org/2015/01/16/representation-of-women-and-...