No clue where i found it after looking again but i saw a 1st quarter 2020 estimate valuing UK higher than US. But i guess i cant prove it so nvm
Most calculations only include federal income tax and social security, most of the states charge separate income tax on top of what the central government takes, which salary comparisons dont include. Another consideration is that in the UK we can rely on the NHS to provide us with healthcare if we need it either for free or for a relatively small prescription charge, but in the USA health insurance can cost thousands of dollars per year.
Also you'd struggle to find any metric in which the US places better than the UK in education other than in perhaps top universities, which lets be real, doesnt mean much in the grand scheme of things.
American degress in Engineering aren't automatically recognised in Europe which is the biggest market for Brits in engineering. And most of your engineers stay domestic, so i think its a weak way to 1 up us.
It seems like you skipped over the better healthcare, higher average IQ, better press freedom, less political divide etc.
I dont think the fact you have a better market for engineers makes your country even close to the UK. I could find thousands of statistics that make the US a worse place to live, like crime for example ;)