I guess I will do the napkin math:
39% of Americans graduated college [2]
Income of mid-career is 111,000 (college) vs 43,000 (HS) [2]
Lifetime increase in earnings is estimated 800,000, paying taxes the whole time.
So I think the commenter calling this a one time tax deduction is closer to reality than a "regressive tax". Probably less regressive than the 401Ks many college grads have vs HS.
That’s not the assertion they made. They’re average person paying tax didn’t graduate college, which is different from saying that most of the tax revenue is collected from non-college graduates.