Most of the world has severed the two. A lot of what you'd consider key parts of the university experience just doesn't exist in most of Europe or the highly developed parts of Asia. In practice, it's attaching job training to a very, very expensive resort, regardless of who is paying for it. It's pretty nice, in the very same sense that spending 4 years in a beach resort ls also great, but one needs to be absurdly wealthy to choose this model if an equivalent was available without all the features that most of the world has abandoned. The US system would already have been in trouble years ago if it didn't have a government license for being the safest, more reliable way to immigrate into the US. Get rid of the F1 practical training to work visa pipeline, and see many US institutions in serious economic trouble. We can keep trying to keep it working as-is by pushing other people's money into the expensive vacation environment, but without major subsidies, we are already seeing more people realize that the risks are way too high when you have to get loans to attend. There is no idealism separate from economic incentive in institutions that charge 60K per year, plus often a whole lot more for mandatory on-campus housing, without financial aid.
But as it's normal with failing institutions, they'll be extended, kicking and screaming, until they completely collapse instead of reform, like almost every other country in the world already has.
The F1 issue is absolutely real. Foreign students have been the secret sauce in keeping prices lower for US students for a long time now. Trump 1 and now Trump 2 presidencies have created financial crises at most universities just by making vague anti immigration gestures without even materially changing student visas. Presidents and provosts routinely make desperate oversea sales pitches to try to gin up the pipeline. I know of one major state university whose entire financial existence depends on visas from a few companies in Hyderabad.
> Most of the world has severed the two
Yes, and the US system is the envy of the world and is responsible for the overwhelming majority of wealth generated in the US over the past few decades.
I'm not sure how that's an argument against the US Higher Ed system.
Edit: The real issue you seem to be pointing to is the cost of attending universities in the US. There are 2 parts to this. 1 is the costs of running a university, and the other is the cost that is paid by the student.
Most of the rest of the world subsidizes student tuition so students dont pay much out of pocket. The US, OTOH, has been consistently reducing govt support for student tuition. Even worse, it's been pushing students into taking loans that unlike most other loans cannot be discharged during bankruptcy. And even though students aren't required to start paying back those loans until they graduate, they do start collecting interest from day 1, which means a student has picked up a significant burden simply from the interest on the loans they received to pay for their freshman tuition, when they graduate.
These are all issues with the US system of financing education as opposed to the actual liberal arts education system.