So you say
"First, there are plenty of examples of spending less on students as the students become more diverse. College education was free or heavily subsidized until colleges and universities became heavily integrated. Then the cost of education skyrocketed because all of a sudden white people were against "handouts." College education is incredibly expensive now that white students only about half of college undergradates in the US.
So now you are saying that college is only incredibly expensive now because POC are going to university at a greater rate than they used to? To me, that is a prime example of looking for a racial basis for every issue.
I don't know about college being "free or heavily subsidized" - maybe I am just unaware? But, the rapid escalation of the cost of college education has a lot of causes - I don't believe the racial makeup of the student body is one of them.
Supply and demand is probably the biggest factor. A college education increasingly became a perceived requirement for success. That, combined with the rise in population of college aged kids (kids of the baby boomers), created a huge glut of kids wanting to go to college. Add to that the easy access to college grants and loans and now you have colleges everywhere competing for those kids and that easy money. That lead to the arms race in programs and amenities. In a generation you went from college kids living a spartan lifestyle on campus to living a lavish one. All of this lead to the current problem of kids saddled with huge college loans. Maybe that whole system was race-based and I just don't see it?
At the same time colleges saw a huge increase in administrative bloat - further increasing costs.