The problem is that different places would have different levels of funding. Long Island has some very poor school districts right next to some very rich school districts. It would make more sense to have the funding not be so local. Also, property and sales taxes are rather regressive.
It is important to note that the primary reason why emergency room visits are so expensive for patients is that they have to treat everyone, even people who can't pay. Obviously a universal health care system would make that system be less crazy.
In my own plan, I insist on sales and property taxes because even transients pay them, unlike income tax. Since accidents are statistically speaking just as likely to strike them as lifelong residents, it doesn't seem quite fair that residents pay
all of the hospital operating costs for emergency care though local income tax.
Yes, hospital emergency wings are required by federal law to admit patients regardless of their ability to pay. And for truly indigent ... well, society already pays for them, badly, today. I am pretty convinced that we will never recover payment from them under any plan. They are a permanent loss.
I wanted my plan to reduce some of the overhead (and then some) that the hospital charges for the patients that
can pay, whether insured or not.