Isn't this a complete misunderstanding of intersectionality?
The concept was created (by Kimberlé Crenshaw) in order to highlight that if you don't explore all axes of oppression, it is possible to continue to discriminate against an oppressed group while claiming to be doing the opposite.
Which is exactly what TRAs do to all women (no sane person could argue that black or brown women are somehow benefitting from men in single sex spaces) when they seek to obscure the fact of sex discrimination whilst continuing to both benefit from and perpetuate it.
(The situation which sparked the concept of intersectionality was (IIRC) the term "black people" being used to obscure the fact that a company was only happy to employ black men in it's workshop and not black women in it's public areas; ie the company's hiring stats said it wasn't racist when of course its hiring policies were very racist. Similarly, trans ideology has appropriated the word "woman" for men therefore obscuring things such as pay disparity, maternity discrimination, sex crime statistics etc).
Trans rights ideology has appropriated intersectionality just as it has appropriated feminism, and twisted them both to claim extra rights for predominantly white men. Make it make sense.