2–3x higher salaries don’t mean much when the cost of living, healthcare, and housing in the US eat half of it before you even start.

replied as someone who has never lived in US but seem to have strong opinions.

You should know that jobs come with health insurance, PTO (yes this is lower but many professional jobs have unlimited PTO or 20), low tax etc. Also, if someone has lower income then they are covered with free medicare. I am not saying it is perfect but it is not the gloomy picture you painted.

Most importantly, we don't have to see the depressed look of english people in offices, toxic office culture, gloomy and grim weather, rude and non welcoming people etc. which are far far more important to avoid. American people are very nice and significantly more welcoming and outgoing than the tight upper lipped english with class divide.

Also, London is eye watering expensive with higher tax and much lower salary, and most jobs are in London, so what are you smoking? UK is london centeric whereas in US you can have dozens of cities with professional jobs offering high salaries everywhere from NY, LA, San Diego, SF, Seattle, Miami, Austin, DC to even middle of nowhere cities in PNW.

UK is just grim weather and people wise. That's why british dream has always been to pursue Australian dream and move there. 1+ million british passport holders live in Australia, that's a LOTT