Yes, that poster wrote that one guy couldn't finance it for a year.
I wrote that one guy could finance it for about 6 months (which is consisten with the above), and if you also add the next 40 billionaries you could finance it for 18 months (which is also consistent).
Obviously that wouldn't work in practice; that's why France has a more meaningful taxation of wealth - because they have somewhat competent people in charge.
I see that you have chosen the latter.
The problem is that if you mix numbers that are per time unit (like GDP and pension payments during a year) with accumulated totals (like wealth) you get lost in meaningless results.
But continue living in your bubble - I will not stop you, and have more important things to do.