90th percentile of individual full time workers in the US make ~$130,000/year.

depends where you live. $100k for a family of 4 in the bay area is at the poverty line.

The fact that so many Americans at that extremely high income are choosing to spend it all instead of building wealth is a cultural problem, not an economic one.

source please. i completely disagree. medical costs have skyrocketed, housing prices have outpaced inflation by several times, student loans are crippling entire generations, and wages have stagnated since the 80s.

what's that steinbeck quote? "Socialism never took root in America because the poor see themselves not as an exploited proletariat but as temporarily embarrassed millionaires"

are you just a temporarily embarrassed millionaire? if you're not wealthy already, why the hell are you defending the status quo? you're arguing against your own self interest. i dont get it