My thoughts on Christianity or Christian governance aside, you’d have to provide some sort of objective evidence that the interest rates are unreasonably high to support your claim they are usurious. The entire argument hinges on that.
Sure it’s a non dischargable debt at roughly 4.5 % interest rate loaned to an 18 year old kid with no assets or means to pay it back. 18 year olds are poor, charging interest to the poor is usury, as is profiting off loaning money to the poor.
This system is made exponentially worse by the lender, running the lower education system which creates borrowers for the lender by teaching them to go to college and borrow money from the lender, and
The lender is also for lack of a better word, the lien holder on the higher education institutions. The same lender for the 18 year old is giving money it prints to the institution, so the institution can freely raise the cost of education without worrying about a lack of supply (applicants) because their tuition is backed by an infinite money printing machine and because their lender is creating an increasing supply applicants through the lower education system.
There is no risk to the lender, or the university. The student bears 100% of the risk all while the lender has been pursuing policies for the last 40 years which reduces the reward.