America compared to Europe in terms of difference between gross and net pay is heaven
In Europe most of the times you pay like 50% of your gross salaries in taxes, and guess what houses are still like 10 years worth of gross pay
Despite this, people can still afford to buy a place that they call home, and live a decent life despite having an average salary
Your arguments have no economic point
Europeans are complaining just as much when it comes to housing prices. People are still living with their parents into their mid to late 20's and the biggest drain of income is rent by a significant amount, just like the US.
Also, taxes in the US are not any better. I know half a dozen peers who moved all the way to California for high salary jobs and the chance of a better life. Here's what they encountered:
Gross $100k / yr in CA (most populated state)
Federal taxes: $39,180 (39%)
CA state tax: $6,047 (6%)
CA sales tax: 7.25%
That's 45% already on just taxes and 7.25% on everything you purchase after.
Don't want to live with mom? The median rent in CA according to Zillow is $2,900 / mo. So $34,800 / yr (35%).
You probably need a car to get to work. Car insurance itself is between $2,000 - $2,300 / yr depending (on the source) and mandatory. (2%).
So that's 82% already gone on just taxes, rent, and car insurance. Ok, so you have $18,000 on average for everything else and you'll have to pay an extra 7.25% of it each purchase (plus, likely a 2% charge from VISA or Mastercard that gets pushed to the customer for paying with card).
That's $1,500 / mo average for food, clothing, electricity, water bill, etc. Let's say you keep $900.
At some point you stop spending on necessaries and start saving for a house...which is $744,000 (median price according to Zillow).
It will take you 69 years to pay for a house if you somehow got a 0% interest loan. If I lived in CA, I would give up too. Especially with OLD and the way job applications are handled these days. A house, a woman, and stable work are the bare minimum things all men need, and each of those goals grinds them up, especially when alternative ways of doing things ("just go outside") start to disappear in favor of the new, more grindy way.
And that's on a six figure salary. Median household income is $84,000 (census.gov). But if you're a young man, you're not a household. You're a single person, so it's even less. Every person I know who moved to CA for that nice looking salary came back after 5 years burned out with not much to show for it. This is what people graduating college start out with, plus $40,000 - $60,000 in student debt. You don't get that debt in Europe, but the rest is basically the same.
I've written a post like this somewhere on the internet about 50-70 times over the years. I'm starting to think the concepts of limits and bottlenecks is a "but I did eat breakfast today" kind of thing for anyone over 35.