Yes I totally understand your point of view. I spent almost a decade paying off a six figure debt for my CS degree. The funniest part? I learned almost nothing about web development in school. No marketable skills that would have really helped me when I first started my actual job! How can I argue this is a good thing?
Well, the best analogy I can think of is a black belt in karate. It takes 10 years or whatever to get that. It has no marketable purpose. Why do it? The answer is more than "to get a job". It's about Discipline. Focus. Intense research into fundamentals. Stretching your limit if what you can learn in a weekend. Writing half a page of assembly code on a piece of paper. Debugging a C program. Red black trees. These have no purpose, but when reflecting on these experiences, I would not trade them for a second for "Intro to Javascript and HTML".