how would you know egrow? your press is biased and refuses to talk about the real world outside of the states.
the charts are out there. gdp per capita. living standards. development index. transparency index.
the biggest US advantage is that america offers opportunities to non-gringos.
the indians running google et-al are not doing that with swiss companies anytime soon.
meanwhile swiss and norwegians are not rushing to move to america. despite trump's comments about the types he wants.
it is people from poorer countries and non-gringos who do not get the same opportunities in europe/australia.
the following are perennial problems and nothing to do with "the party in charge"
universal health care, reliable electricity, good roads / infrastructure, effective quality public transport, healthy food, quality universal primary education, free universities ...
and we haven't even started on the downsides like dangerous foods, violence, crime levels, clean water ...