Anything that ends in studies
An old saying: Math and science courses are meant to teach you math and science. Liberal arts courses are meant to make you think that the liberal arts course is important. LOL
I’d say 85-90%.
the remaining 20-25% constitutes the areas of college curriculum that society still values and requires discipline: nursing, accounting, finance, engineering, science, and maybe English if taught by those without a political bias.
and of course, the necessary staff for basic college operations: cafeteria staff, janitors, quality academics, 10% of current administrators, etc.
Based on those graduating I’d say all of it.
What proportion of higher education is not education at all?
I’m guessing anything that doesn’t involve true sciences or mathematics is probably a waste. I would like to think that some forms of critical thinking could be useful, provided that they truly are “critical thinking” and not just liberal ranting.

My project hired a double major from Rutgers with a near perfect GPA. A very smart guy. Unfortunately, his code was littered with spelling errors e.g. "nesasary". The source code was a customer deliverable. I had to find editor plug-ins that would flag spelling errors in source code components.
Foreign language skills are useful even to a software engineer. I had to do deliveries in France, Germany, Belgium, Italy and Turkey. I'm adequately capable in all of the languages spoken in those countries. It helps in customer meetings and travel. In my duties as an electronics bench tech, I had to repair a German VHF radio. No problem reading the manual in German and doing the repairs.
I've seen the results of a less comprehensive education. It limits opportunities. Education/learning should continue until your last breath.
Get the federal gov’t out of funding research & school loans & you can immediately reduce the administrative staff at universities. A lot of them are there to maintain compliance with fed regulations & complete federally mandated audits.
I completed the core technology upper division courses in less than two years. I had to spend an additional year filling in the graduation requirements with crap liberal arts courses.
In the end, I had taken over 140 credit hours before I finally graduated. In USAF Tech School, we did almost the same thing in about 7 months regarding relevant subject matter.
It's called a BS for a reason.
60% - at least
My guess was 90%.
Most 4-year colleges where parents spend a small fortune to transform an optimistic bright student into an unhirable godless socialist of dubious gender all too ready to move back home to their basement.
>75% ?
Anything that will not assure you a good paying job needs to go. Both my degrees were in Science, Geology and years later Pharmacy. The day I graduated I had a job waiting.
Relative to the arts I am confused. The arts are well worth studying but should it be on the public dime? Perhaps this should be confined to private institutions?
The school of education should be ripped to its roots and disposed of, as it is leftist indoctrination and a danger. That school needs total reformation.
not. just higher education but likely all preschool on through university, masters doctorate etc etc, it’s all been distorted and everyone working at the universities is helping the problem, not helping the solution.