So being in the bottom 50% in the US sucks when you look around your country, but is actually pretty "decent" when you look around your planet.
Poverty in the US is similar to poverty in Sweden, according to this dataset:
https://ourworldindata.org/grapher/poverty-share-on-less-tha...
But the median American earns far higher wages than the median Swede:
https://ourworldindata.org/grapher/daily-median-income
I think there is just a lot of misinformation out there. Americans love to complain, and other countries love to criticize the US. These effects create systematic misconceptions which no one bothers to fact-check.
The battle in the US is between the mid-low-middle-class/lower-class and the 1%. Which is just so incredibly effective at diverting attention from where all the actual money is. When you can pull your head out of the swamp of social media and fountains of clickbait/class ragebait, there is this huge elephant sitting in the room with it's finger over it's mouth doing the "shhh, be quiet" motion.