I think the make-up counter thing is silly. Some of the greatest make-up artists, and hairdressers, have been men.
I am sure there have always been some women who deliberately go to women for these kinds of things, which is fine. KJK can take that approach and IMO she's wasting her energy being bothered about it.
That being said, to me the underlying issue is around the fact the fellow she encountered seemed to be a cross dresser. My hairdresser, who also does make e up (and would die if he saw I'd called him a "hairdresser I realize as I write,) is a very obviously gay man. On the other hand there is a trans woman who works at a make-up counter in the mall nearby, and I'd be less inclined to go to him - because I don't know if he's a gay man, or getting his rocks off by cross dressing.
In truth, men don't do themselves up as women in a commitment to gender neutrality. Apart from transvestites and gay men with self-acceptance issues, there are some men who will push boundaries and fashion to be edgy but they typically look like men wearing unconventional clothes, or men wearing masculine makeup, they don't look like they are trying to look like women. (I don't count kilts, sarongs and the like, they have always been men's clothing.Nor do I count actors, comics, or Halloween. )
In my experience it is not at all hard to tell the difference between a man wearing make up, or a man wearing an unusual item of clothing, and a man dressed as a woman. But I agree with KJK in so far as I don't really want my make-up done by a cross-dresser.