1) Not even try to move to the US to pursue the dream of a world-class tech career (dream I had since I was 12), stay in my own EU country with a mind-numbing consultancy job (which again, it's the only kind of employment available since the country is mostly rural with a limited software industry) to be fully consistent with morals. This also means I won't be able to financially help my parents as a sign of gratitude for all they've done for me, since my salary will be barely enough to keep me afloat.
2) Move to the US and completely renounce to my EU citizenship, so I won't ever have a way to go back and "take advantage" of my EU country (meaning I wouldn't even be able to see parents and family without an immigration visa).
3) Move to the US, keep the EU citizenship, but completely deny to myself the option of eventually moving back if needed. So, if I get a massive debilitating cancer that will force me to quit my job and lose my health insurance in the US, I'll die without treatment and all alone (loving family is all in EU) but with morals.
4) Move to the US, keep the EU citizenship, keep the possibility of eventually moving to EU, but to be consistent with morals find a way to donate to my EU government a few hundreds/thousands a month to keep contributing to the social safety net even if I'm not a resident there (I don't believe that's even physically possible?). But certainly that wouldn't be enough to cover the expenses my government paid for my education, so I should also find a way to refund that?
5) Move to the US, keep the EU citizenship, and start a countdown mandating that in exactly N years (where N cannot be certainly changed!) I will move back to EU regardless of where I am in my career or health status, so I won't be able to just move to the EU at the most convenient time.
I'm asking because it's easy to talk about problems at a philosophical level, but please try to step down from your judging pedestal and come back to the real world with real problems, thinking what YOU would have done in practice.