It seems the optimal solution is to move to the US for your early earning years, build a nest egg, then leave once you get older and especially once you plan to start a family, for a number of (non-exhaustive) reasons:

* Vacation time in the US is paltry and often downright exploitative.

* Our for-profit healthcare system can easily wipe out any wealth you've accumulated upon a major medical episode, depending on what kind of coverage your insurance provides. Said coverage is usually determined by your employer.

* Education in the US is a joke compared to virtually every other developed nation.

* The homocide rate in the US is higher than 75% of other countries.

* Consumer protections in the US are virtually non-existent.

* Food quality is poor - e.g., virtually all foods have tons of corn syrup and other sugars added.

* The country as a whole is overly car-centric. Your day-to-day in the US virtually requires the use of a car, as most cities are not designed with walking or biking in mind, and only a few have useful public transportation.