If colleges cold called prospective students and lied about the cost of education that would be predatory. The borrowers are not passive victims- it is only by their overt choices and actions that they go into debt.
250k for a 40k per year job is a bad investment but simply being a bad investment isn't predatory. A TV is a bad investment, Starbucks is a bad investment- they aren't predatory.
What is it about student loans that makes them predatory?
For those who believe people 18-24 are still developing and need special protection- do you think the voting age should be raised?
I'd be interested to see a world where your degree itself was factored into the equation. Pursuing biology? Nope, we've got too many of those and biologists don't make enough money on average. You'll only get lent a safe amount. Pursuing law? Now that's a safe loan with good payback odds! This would likely incentivize schools to put more scholarships in the less lucrative fields, and potentially keep those fields from becoming overpopulated. Or maybe folks will need to start their education in a community college or state school to build credibility. I'm sure the implications would be more nuanced than that, but I think that the incentive system for lenders is currently not working as intended.