The US is biased to favor the top half of society. Hence why there is a lot of vocal poorer people and a lot of low profile wealthier people (I'm not including the 1% or even the 5% in this).
When you are in the 75%ish of the US, it's very easy to make a case that life in the US is better. But we don't really talk about that because it's pretty taboo when poorer people are struggling much more than they would in Europe.
Poor people in America (25th percentile) have more money that middle class people (50th percentile) in Europe. This wasn't true 20 years ago.
Not 75%, more like 95%. Only about the top 5% have a chance of a better life than the equivalent in Europe.
Almost half of US households earn $100k+ now. The median American is affluent by European standards. The "middle class" of Europe and America has become less comparable over time because median incomes have significantly diverged. You see it in many aspects of lifestyle and the kinds of things they can afford to buy.
20 years ago this was not the case. The minimum wage in some parts of the US is now higher than the average wage in most of Europe.
The US has a population that will always struggle to survive without government assistance. Per multiple US statistical agencies that is about 10-15% of households.