Holding body count and attractiveness constant, I believe that men would rather date an escort than date a woman who slept around on Tinder. This is largely because men see escorts as "fucking down" rather than "fucking up" like women on Tinder do. It satisfies his ego more to know that he got what all those other men had to pay for. However, he feels like he is being "settled" for when he knows he looks nothing like the "Chads" that Tinder girl was hooking up with. I think that men care less about the body count than they do about how that body count was achieved. A woman who fucked 5 "Chads" off of Tinder is going to be much more threatening than the equivalent woman who had 5 relationships or had 5 clients as an escort.

The reason why the "sexual double standard" exists is that women know that men "fuck down" for casual sex so they don't feel like they're being settled for when they date a man with a high body count. However, she probably wouldn't want to date a man who achieved his body count by seeing escorts because she would feel like she's being settled for. Women's resistance to dating men who've slept with escorts isn't really about "protecting" women and not seeing sex as a transaction. You can see this in how they've reacted to women talking about their experiences with hiring male escorts. It's really about not feeling like their partner is "settling" for them just like men. If we compare the reaction that men have to women who sleep with men "out of their league" to the reaction that women have towards men who do the same, they really is no "sexual double standard" or at least not a very large one.

I (32f) just hired a male : datingoverthirty (reddit.com)

How would you react if a partner told you they had been with prostitutes in the past? : AskWomen (reddit.com)

TLDR: Men's reluctance to date women with high body counts isn't about "slut-shaming", it's about not wanting to feel like they're being settled for. The "sexual double standard" exists only because men and women are comparing two completely different experiences. A woman hooking up with a guy out of her league on Tinder isn't much different than a man who does the same by sleeping with an escort.