I don't think that's what he's arguing. I think he believes there are some people who - grew up in deep poverty - graduated highschool with the grades/SATs to

I don't think that's what he's arguing. I think he believes there are some people who - grew up in deep poverty - graduated highschool with the grades/SATs to get into a STEM program - didn't get enough grants/loans to go to college - would have gone to college had it been free - and would have graduated with a worthwhile degree had they gone but they're outnumbered by their peers who wouldn't benefit from free college, but would still have to pay extra taxes, or receive less in benefits to fund a bunch of upper/middle class kids art pursuing history degrees.