People who are interested in specific career tracks are obligated to go to university. Medicine, law, teaching, certain forms of engineering all require a degree. Fields like business, accounting, public service (even police/fire) and other forms engineering practically require a degree - while a person can break into some of those fields without them, the majority of people have degrees.
Also, I think a good bit of people are pushing anti-college sentiment as a way to keep other peoples' kids out of college, saving space for theirs and reducing competition for jobs. I've run into quite a few white collar professions that espouse "trades" (generically, of course) as a clearly better alternative to university, but aren't pushing their kids in that direction.
Real "college backlash" won't come until degree requirements fall for careers. Which is not something I see happening.