So, a major "free college" government program, and enrollment remains static? Wouldn't, at least, people who currently attend private universities want to transfer to the free option? Some of those, ostensibly, would be better qualified than current attendees of the state school; would enrollment increase, or would those current (or potential) students be displaced?
Also, part of his proposal is to "replace adjunct faculty with permanent". Doesn't that cost more (my wife's a tenured professor - the answer is "Yes")? Again, not static.
And that's just a couple of thought threads related to this.
Please think critically.