I have no doubt some HS players / freshmen are getting paid, too. But I don't believe they're getting paid millions.
I'm not sure why you're so focused on these kids getting paid "millions." It doesn't have to be millions to wildly upset the already ööööty balance between CFB haves and have-nots. If a highly recruited o-lineman could secure a 50k deal by going to, oh, say, Texas A&M, vs a 10k deal going to *literally anywhere else* - most kids will go straight for the money. And I wouldn't blame them.
It's not about ONE KID getting millions that's going to upset the applecart. It's about paying an entire roster enough to make it worth each of their individual whiles to go to a specific school.
Get over the million dollars to one kid thing - those are edge cases. Deep money schools are going to have a huge recruiting advantage over schools with less money (even more so than ever before). Full stop.