I think the issue intensified post Me Too. Certain men welcomed the conflict, because it meant the heat was finally off them.
I disliked the branding of Me Too as if it was a new phenomenon - it's just old-fashioned feminism/consciousness raising. However it's undeniable this world wide movement of women across generations mainstreamed discussion of male violence, put pressure on industries and seemed like it could be a tipping point for systemic change, despite concerns about trial by media etc.
This led to an inevitable backlash. Andrew Tate is one manifestation, the rise of the slur "Karen" and support for Depp is another; and I believe the unquestioning support of some men for trans rights at the cost of women's rights is part of the Me Too backlash.
I think trans demands have been consistent throughout, but male allies jumped enthusiastically en masse onto what was a niche cause.
I think it's partly chivalry - standing up for an apparent underdog - but it is highly convenient that it gets men temporarily off the hook. Masculinity is not the villain and they don't need to examine themselves as a category. Now right-minded men and women share a common enemy - the mean old femininazis Terfs, who are bullying the vulnerable trans dolls.
It also gives men a chance to flex their Witchfinder General tendencies. I'm sure I'm not the only one who has been on the receiving end of the smirk, as some bro realises to his delight that he's detected Terf tendencies.