Really? I suspect you have very little knowledge of the EU or how it works or its history. Here for example is an EU treaty, which took years to prepare and agree by the governments of all the countries but was abandoned after failing narrowly to pass referenda in France and the Netherlands https://en.wikipedia.org/wiki/Treaty_establishing_a_Constitu...
Whereas in the US, the result of an election is decided by informed voters who don’t have to take into account what the majority of electors voted for. Much more efficient :D