The guy in the OP is hot af, but I'm just not a fan. A jock strap is just fine. "Mangerie" seems a little extra and unnecessary. I'd rather see my man in as little as possible.
This logic is the reason some people find incest, or people undergoing surgery to turn themselves into dragons or cats, normal and ok.
Boundaries are completely lost.
I can already see people defending murderers in the near future with the same logic. Let them do what they want, hey they were born that way. Do you boo.
I would never wear it, and I don't think 99% of other men would either, but I don't care if anyone chooses to, it's their choice and doesn't hurt anybody.