My response was intended as sarcasm. But eventually, I don't think it will be a two-tiered system. You simply won't be allowed to fly without what is currently required for precheck.
And fwiw, I don't think the strong argument against precheck has to do with social class... it's not terribly expensive, and anyone can do it. It's just a further invasion of privacy.
Precheck is super cheap, it's like less than $100 once per 5 years. Yes, it is an invasion of privacy, but I suspect the government already has all that data anyway many times over.
I go through the regular TSA line out of solidarity and protest. Fuck the security theater.