US does have higher wages but the QoL in the US is bad. It is almost impossible to own a house in the city center everything is overpriced, many US cities are also unsafe. New Orleans and St. Louis are some of the most violent cities in the world, education and healthcare system is also extremely inefficient and very expensive, in general it is a capitalist shithole. If your main aim is to get rich and you can deal with all that then yes US is good place to make a shit ton of money for 10-15 years on H1B and then go back to your home country.
No but I am willing to learn it. I mainly want to move to EU because of better QoL. It is the best paying country in the EU. Language will be a problem ofc, I have to learn it but you can get in direct for work as a data scientist, PR in 21 months, citizenship in 6 years (might be reduced to 4 with the new policies) so unlike the UK and US you won't have to wait for 25-30 years for your citizenship.
And 50% of population, with higher prevalence in educated collegues, know English, so if that's what you mean by working in a career there, with others just understanding you in English, then that's basically the same as UK but better in income.
The ease of migration does look enticing.
Can you tell, what kind of work would you do as a data scientist? Seems like a based specialty, not gonna lie. Programmers learn some obscure technologies, just to repeat the same learning from 0 with updates and new technologies all the life, creating nothing but dead memories, and now even getting automated by AI worsening competition. But you seem to work in more like a business task space, while still being a technology/science guy, that's so much more cool and close to business side of things.
I am considering what major to puruse, just a general business administration, with then hyper specialization with courses and a job's industry's niche basically forever (like marketing, or small enterprise place's management), or data scientist. Business majors or businessy sciency majors (like data scientist) seem like best for those who don't have school skills (like physics, maths, all that stuff).
You can even try some online businesses if you have marketing skills that you trained from your business major job (like in marketing, because a lot of online businesses are just helping market stuff).