I can say from personal experience, I'm in the midwest and in my entire dating career, I've only encountered two women with prior knowledge of natural men, and both of them had spent time in Europe.
So if the rate is indeed dropping here, it's happening in a younger segment of the population. (Good for them!)
Then I talked with his kindergarten teacher and "warned" her about his penis so she'll be "ready". She looked at me dead in the eye and said: "This is Tel Aviv, half the boys here aren't circumcised". Lol. I guess I'm not too special.
I think it was Norway planned to outlaw all mutilations of minors and ended up with all middle eastern religions crying foul in unison which was scary. (All they seemed to disagree on was which child to harm) needles to say the law that was eventually passed was so watered down as to be (again imo) ineffective...
The view that this practice is the norm and that it's somehow so untouchable is imo scary.
Hence the litany of "health studies" supporting the practice, so it's not just a religious issue, it's a health issue! Muddy the waters with just enough doubt to keep the debate alive instead of letting it be an obviously-settled issue like FGM.
The result is that, if you look at all the papers published on the topic, and sort them into two piles depending on who funded the research, and then look again and sort them into two piles depending on their conclusion, you'll find that you've performed the same sort twice.
It's only by making this a matter of religious autonomy that MGM isn't banned outright yet, because politicians are always really careful around matters that might anger religious groups. Especially right-leaning politicians or those who belong to a Christianity-based political party.
[1] https://en.m.wikipedia.org/wiki/Prevalence_of_circumcision
If you read anything about modern evangelical thought the single worst thing a child could demand is their autonomy, and well, anyway, every time I look in the mirror right-wing America gets to kick me in the face again.
Wicked culture, all of it.