I should point out native americans are still largely unemployed, stuck in reservations on land white American's didn't want. One of their few rays of hope being the ubiquitous Indian Casino where they are exacting their revenge. Still they are second class citizens.
Blacks were still being massively discriminated against until the Civil Rights act which was around 180 years later. They are still second class citizens.
The poor, they are still second class citizens.
Women are the one group doing pretty well for themselves though they are still underrepresnted in government.
Look around the room at a State of the Union address. The room is still overwhelming full of affluent white men.
As for the founding fathers brilliant ideas on governence, it exploded in a bloody civil war in 80 years.
You need look no further than where the U.S. congress, courts and presidency are today. They are a smoldering ruin. They have never been the great institutions Americans are brainwashed in to thinking they are. Are they better than totalitarian dictatorships, sure. Are they models the rest of the world can aspire too, no, not really.
American governement is the best government money can buy.