Its good that someone at Oxford (or any university) is prepared to write about this.
But it isn't anything new. But has now reached increasing influence after 40 years by inflitratin arenas of influence.
Queer politics was part of the backlash against the achievements of Women's Liberation. Despite what had seemed acceptance of autonomous women's organising and challenging the male status quo eg through Women Studies, but within a decade this was eroded by queer analysis promoting "Gender" studies rather than women's studies.
Many of the students who attend universities in the 80s (and onwards) were recruited into this concept and are now in position of influence. eg a recent (female) editor at the Guardian was proud to say that queer politics influenced all her decisions. (So it is not surprising that so many feminists, prior, to the recent domination of trans politics, were routinely censored from Guardian comment items because they had a woman centred analysis ie 5-10 years ago).
Another victory for queer politics was getting the NUJ / journalists and reporters to stop using the word sex and substituting gender, (and also stop referring to prostitution and instead sex work). So it is no wonder that not just this current generation of students but their older siblings and possibly parents have grown genuinely thinking there is no difference. (And imply it is only old, old fashioned feminists that dont understand because they / we haven't "moved with the times")
And it was more than a few years ago that a leading member of LBGT groups in the state said (and again this was a woman) that her aim was to create a movement that had trans as it core, and everything else would be a subset of that.
This pervading influence from universities and the media, worked hand in hand with the mainstream male backlash of for instance lad culture, feminism mutated into ladettes, and hollywood and fashion re-inforcing gender stereotyping in clothes etc., a direct counter to the gender benders of 70s.
Feminism, and specifically Women's Liberation, was left as isolated islands in a tsunami anti women culture, to over turn the concpet of women as a sex class that is opressed by the male sex class.
Trans politics is the cumulative victory of queer politics in not just erasing the concept of autonomous women thinking and working for themselves and other women, but effectively wome. 