I'm late to this thread and have not RTFT.
As a PP alluded to, I think the fact that the US is so politically polarised is bad for gender critical feminism. It's so much more tribal over there than it is in the UK, and unfortunately in the US you have liberals who believe trans women are women, conservatives who don't believe trans women are women, and not a lot else.
That puts gender critical feminists in a difficult position because we are constantly having to defend ourselves against accusations of being allied with the far right, and playing into the hands of people who want to take away our right to an abortion.
Women in the US have a binary political choice between a party which recognises what a woman is but doesn't think they should be allowed to have abortions, and a party which defends female people's right to have an abortion but otherwise refuses to acknowledge that they exist as a category.
In the UK, by contrast, the choice is between the parties on the political left such as Labour, the Lib Dems, the SNP and the Greens, who are all more or less aligned with the US liberals, and the Tories, who are really nothing like the US conservatives at all.
On the one hand, nobody in the Tories is threatening to take away our right to an abortion. On the other hand, they are also not immune to gender ideology, and a lot of the things gender critical feminists are concerned about have happened on their watch.
Back to Matt Walsh, I agree that he and gender critical feminists make strange bedfellows. We really have nothing in common besides not believing in gender ideology. And in many ways, American conservatives have more in common with gender ideologues than either of these groups care to admit, such as accepting the legitimacy of gender roles and believing in things which cannot be proven.
It is odd to see someone like Matt Walsh forensically taking apart gender ideology, knowing that he belongs to a religion which believes in transubstantiation. I wonder whether his current path might lead him to reconsider his own religious beliefs in any way. Or perhaps it might lead him closer to becoming a feminist, or feminist ally, if you don't believe men can become feminists.
Either way, and whatever you think of Matt Walsh as an individual, some of the clips from his movie are incredible. The woman saying chickens are assigned genders... top level batshittery!