It's not the same, because the GDPR only concerns itself with EU citizens ( based on which it claims jurisdiction). The US doesn't pretend to bother itself with such trivialities.
The same way that US sanctions are applied by the US and everyone everywhere should follow them or risk fines and sanctions. No other country does this - when France sanctions Iran, only French citizens and companies are concerned.
You can see very clearly what's most important for each one: USA cares about money, EU about people. I don't consider it a very slightly different rationale.
And it's the same abount health care, really two different ways of life.