all true. but rather than be frustrated, i just see it as an opportunity - your saying that there's a scarcity of people who know the material? if it's valuable, then that should lead to higher value for the good ones.

don't sweat the lazy ones, teach the ones who want to learn.

it sucks that a college degree is no longer a sure way to spot the "good students", but meh, been like that for 20 years or more.