@Ofcourse-
In conversation with world renowned, professional roshei yeshiva and rabbonim (and shadchanim, come to think of it) (by the way, how do you italicize? Thanks!), I’ve heard them say that most guys who seriously date for more than 2 years and don’t find, are being faced with a nisayon, and should keep doing their hishtadlus and davening until the right one (ONE) comes along. And you’re right – if the right one was not red, and the boy keeps on saying yes and going out with girls, they both end up getting hurt. But until we come up with a system to identify who (whom?) the right ONE is ahead of time, it’s not fair to expect the boys to get married to a girl just because he’s going out with her. (Incidentally, have you head about the “divorce crisis”?)
So I do respect your opinion, and you’re certainly entitled to it, but yes, I do disagree. I won’t deny that there are some boys who have issues, but to paint all boys who haven’t had the bracha of finding their bashert yet as being not quite on the derech is a bit unfair.