So many issues to unpick:
- Men's changing rooms: I think he said it was on a different floor; no mention of not wanting to take his daughter there because of her safety (I can't bring myself to read that drivel again to check).
- Every time someone cried 'But no man would ever go to all the trouble to identify as trans or AGP to access female only spaces', we can link to his blog.
He didn't even identify as trans. This was a non-trans man who wanted to access women's fitting rooms. This illustrates women's concerns about the acceptance of transwomen into women's same sex spaces actually eroding the preservation of same sex spaces, because some non-trans men will try to blag their way in. He's actually scored an own goal - he's provided an example of a non-transgender man wanting to enter a women's same sex space, and using the argument of trans-rights. This should be on the This Never Happens thread.
It also shows the fallacy of the TRA strawman argument that women's feelings of being unsafe in the presence of transwomen are unfounded, because, as we all know, that wasn't our concern. It was that once TWs are allowed in, some non-transgender men will try to get in too. And here we have it.
- His motivations: transgender rights or MRA? As the OP says, this is blatant MRA - not all men attack women, therefore it's sexist to segregate men and women, and women's concerns of risk and safety are irrelevant.
Interesting that he's conflating this with trans rights. If he really believed in trans rights he wouldn't want to enter a women’s changing room anyway, would he? Because if TWAW then they should use the women's rooms. As he's a man, not a TW, it shouldn't even occur to him to use the women's. Unless he doesn't really believe TWAW and that if penis-owners are allowed in, in the form of TW, then he, as a fellow penis-owner, should also be allowed in.
So his apparent support of trans rights is guff and it really boils down to MRA.
Either way, it's a prime example of how the erosion of sex-based rights in favour of trans-rights can enable non-trans people to override women's concerns for their own safety.