It's worse than that. I believe that in many cases the social connections developed in college are one of the most important collateral of education, sometimes

It's worse than that. I believe that in many cases the social connections developed in college are one of the most important collateral of education, sometimes rivalling degrees themselves. A fully online education don't enable networking at the same level. People from privileged backgrounds might not notice much of a difference (they can socialise in other ways) but students that could really benefit from strong social connections will suffer the most.