Both female slut shaming AND male virgin shaming are healthy, to a reasonable extent. I mean it's just in our nature to see a man who is a virgin at 25 as a failure, even if you feel sympathy towards him. Likewise it's natural not wanting to marry a woman who has been with dozens of guys.
You can make people scared to say this in public with the threat of becoming ostracized, but their thoughts and actions will remain. Boys will grow up with the belief that it's ok to be socially inept only to have the world crash down on them in their teens or twenties. I've seen exhibits of this on this website a million times.
On the contrary, society needs to search for teenage boys who show signs of, well, inceldom, and give them help early. Help them remove autistic behavior and improve their appearance as much as possible. Same as you'd help a student who has no friends and failing grades.
To some people I might contradict myself here, but I'll also add that you need to teach boys that unless they can manage being alone/jacking off without becoming depressed they'll have a hard time in the dating market. Most of all because even if they get a girlfriend in the end, they might end up emotionally abused by some bitch who knows she can get away with anything. The guy is so scared to end up alone he'll put up with it.
TL;DR
Being a male virgin is shameful, but being stuck in a cucked relationship because you're scared of loneliness is more shameful.