I think the vast majority of Americans who talk about returning to Europe are just depressed by the political situation in America and think that they will be happier, more fulfilled, more appreciated and more prosperous in Europe. Not only is this not true, but the main motivation is in fact defeatism and cowardice, not some particularly special form of love for Europe.

You know best if you feel yourself far more Latvian than American, but you will always carry your American upbringing with you and in certain ways, it will bar you from living as a Latvian. If you believe that you can overcome that or work around it, then you are free to go where you wish, but keep in mind that you are going to a place with a different culture, to live a brand new life. You will be abandoning everything you have built for yourself in America. If you are planning to do so because you believe the political situation in Europe is better, then it is worth noting that Europe is just one or two decades behind America and in many important aspects is actually on par with it. Everything that you hate about America, you will to a large extent also encounter in Europe, and you will see it grow with time.

Progressive neoliberal globalism can't be avoided just by moving to Europe.