I'm not sure anyone is making that "silly false equivalence" - or at least, I'm not. OP's DH, in this case, was obviously not afraid of being assaulted or coming to harm. But, if he's like me (or if he's like the 14-year-old girl mentioned upthread), he probably feels confused, resentful and uneasy to be an unwilling participant in other people's exhibitionist fantasy. For a bloke, I'd imagine there are other stresses, too, such as fear of being accused of "perving" (as evidenced by some of the mockery on this thread).
Grayson Perry felt perfectly comfortable in what he wore to the children's cancer charity event, so errrrmmm bully for him, I guess... just like we should applaud these young women for not giving a shit either about the discomfort/anxiety of those around them?
In their case, presumably it's not a fetish they're acting out. But it does point to something equally disturbing, in my view: why do they want to look as though they're auditioning for Love Island? Since when did it become empowering for women to look as though their highest aspiration is to work in the sex industry (I'm not saying, of course, that don't have different goals; I'm talking about the way they present)?
There is a lot of talk on MN about how porn has warped the minds of men and boys. What's it doing to our women and girls?