I don’t agree at all that it’s the girls who are “driving this thing.” I think the reponsibility lies directly in the laps of the yeshivah system that brainwashes the girls into thinking that a boy who earns a living is not a “best boy,” and the seminaries that convince them that they are next true n’shei chayil of the universe. These girls are clueless about real life, and often, marriage is a shocking eye-opener for many of them. they want a Kollel life, but have no concept of what that entails.
Then you have the boys’ yeshivas that strive mightily to inculcate in the bochurim the notion that sitting and learning is THE one and only proper expression of a Ben-Torah. Only problem is that “im ein kemach EIN Torah” and eventually SOMEONE has to earn the living, and we have raised a generation of entitled boys who think the obligation to support their families rests with their in-laws.