You think a 15%+ VAT is imposed on Billionaires?
We already went through this, you could tax the billionaires at 100% and you still wouldn't come close to enough to pay for Medicare for all - let alone
The reasoning for this is because you ACTUALLY will have to substantially increase federal income taxes on the bottom 50% - which currently are a net negative to income tax or contribute $0. This is just Math 101 here. It is a complete fact that 50% of this country either pays $0 or is a net negative to federal income taxes. No - You don't get to count their Social Security taxes, unless you're implying that we will do away with Social Security and use those for other means. We're already well aware that Social Security is in the hole itself and will need to have tax increased on it as well.
So again, if you idolize all the countries that have healthcare - have "free" college - have childcare... their taxes on the bottom 50% and middle class are ENORMOUSLY taxed higher than our current system. That will need to change, and that will not be $200.
See: