Troons haven’t declared war on this deeply offensive display of transphobia, but I suppose it’s only a matter of time.
And critical troon/troon maiden mass.
They have in a minor way in some places.
In my country, it's not all that uncommon for straight men in sports teams - especially university sports teams - to occasionally do cross dressing as a laugh. Sometimes this is for charity purposes, sometimes as an entertaining night out option ("you've all got to come dressed as sexy nuns") or as a light hazing ritual ("new recruits have to dress up as birds").
The purpose of doing this is because it's funny to see a burly 6'4" rugby player in a skimpy dress and wig. It feeds off a pretty long standing tradition of heterosexual men doing drag for comedy, both in the form of traditional pantomime dames (always played by men) or later British comedy shows.
Anyway, nobody ever really questioned it. 10 years ago it was not uncommon to see the typical sports club night in a students union featuring some lads in tutus with balloons strapped to their chests.
In 2015 NUS Women (the National Union of Students' women caucus) voted on a motion to condemn this practice;
The motion passed, although it specifically exempted drag (they did have a separate motion that year telling off white gay men, though, and a year later passed a motion calling for gay men's representatives in LGBT societies to be abolished). The NUS National Conference 2015 did not actually ratify the no-crossdressing motion, most likely because they have a hilarious policy of just ignoring motions if they don't get round to them in time because floor speakers spent too much time bickering over previous motions.
Nevertheless, this did make waves, and there have been restrictions on cross dressing in British universities, much like rules about culturally appropriative costumes -
Aberystwyth Students Union was the latest to ban the theme last year (note as well that the campus LGBT society backed the move and said it wouldn't do drag either, because it would make members feel uncomfortable) and
this was shortly after Oxford banned it along with "gendered" traditional fancy dress themes (like "Tarts and Vicars", "Pimps and Hoes" or "Fox Hunting") in case it made non binary people feel excluded.
You do not get a prize for working out what the proposers of these motions identified as.