I didn’t say “degree success, no degree failure”, as you claim I did. I simply queried how you could complete a degree and learn no valuable skills.
You also seem to have some very simplistic views on the marketisation of higher education. What you outline is indeed a very big problem, but not in the way that you think it is.
Studying at University was originally a chance to learn about something/the world. It was about the pursuit of knowledge, not just money. (And yes, there are problems with that, because it was of course elitist - often only the wealthy could access it, or afford to dedicate time to thinking.)
When the government introduced fees, something that was never intended to be a product began to be sold as if it was a product.
This is why people like you feel hard done by: because you think you should have bought something specific, like a higher paid job.
And many people who study do indeed learn a lot about themselves and the world, and acquire lots of skills, and go on to do very well.
But others like yourself, who perhaps are unable to see the value because the skills you learned are transferable, or because you weren’t instantly propelled into a job with the same name as your degree, think you have been short changed.
Fortunately, when I was 18, I was able to understand all this and went into my degree with eyes open: aware that it was a travesty to ruin the pedagogical relationship by turning it into a consumer one; aware of the value of what I’d study to me personally, and its potential for future careers.
Many 18 year olds today still understand all this, too. Many young people are in my experience quite astute, and do degrees for a variety of reasons of reasons.