Perhaps because 30k (your number) is a bit much, as the GDP/C of USA is only 53k.
As I said, wealth redistribution is knob, currently set to around 5% (my guess) in the USA. I think 20% should be the aim over time, which translates to ~15k income in some form of UBI, and +15% tax for the rich.
That would mean a 30k income for an average 4 person household.
"Even with the highest tax bracket at 100% I don't see how it could work."
That is entirely lack of imagination on your side ... just add up all the money the top 10% makes. And it must work mathematically, because 30k is lower than average income at 51k.
As I said, wealth redistribution is knob, currently set to around 5% (my guess) in the USA. I think 20% should be the aim over time, which translates to ~15k income in some form of UBI, and +15% tax for the rich.
That would mean a 30k income for an average 4 person household.
"Even with the highest tax bracket at 100% I don't see how it could work."
That is entirely lack of imagination on your side ... just add up all the money the top 10% makes. And it must work mathematically, because 30k is lower than average income at 51k.