OTOH education should obviously be subsidized because it is a public good to have a society where everyone is educated, even though education will have close to zero measurable economic impact on any particular individual, every aspect of society benefits greatly from everyone having access to it.
It's crazy that education has been subverted into vocational training, and now that the transformation is nearly complete people are asking, wait why the hell is there any education going on in these places, aren't they supposed to be job training programs?
Not providing loans for programs that will not provide the means for a student to repay them is the right thing to do, as those loans are a path for the exploitation of the student.
I'm not sure how well this maps to reality, and maybe you're right-- maybe the government should only offer loans, and only to students who have a high probability of paying them off. But I still feel that this is a step in the right direction.