You're being a bit disingenuous I think. Consider the prior trump tax bill also had a sunset. It is the way it is done. It keeps the CBO numbers better.
But I'm not sure, are you really advocating that we should just let the people in the income gap between medicaid and can afford insurance ,die? You may be on medicare now and don't care, I don't know. Oddly, once you cross 65, somehow the consensus is you made it, so affordable health insurance for you.
I was self employed for many years and can say, as you near medicare age (65) that health bill skyrockets. I am healthy so went with high deductible, and even with that it was 8K/yr several years ago. I've had friends not so healthy with 20-30 grand a year in premiums. Now if you say make 60/yr, that puts you over that magic threshold of subsidy, so you are looking at 40-50% of your income to pay health care premiums to stay alive. Your alternative and most take it is to drop coverage. And then society gets to pick up the bill from your ER care, because you went bk from the 300K bill from the hospital for the flu. Or they die if society is lucky eh?