Most European countries, have their own version of consumer protection agencies, usually any kind of complaint gets sorted out, even if takes a couple months.
If they fail for whatever reason, there is still the top European one.
Most of the time I read about FTC, it appears to side with the wrong guys.
The American sense (when we get off our butts and do it) is common sense, slowly changing law that always apportions control in equal parts to accountability.
It's the last part that is more galling (because increasingly we've failed) and ultimately will be the more decisive in any future inflection point.
It doesn't need to turn the US into some grubby mafia state. It could, but I think it is unlikely. But the road for both the US and the world IMO goes down before it goes up as many systems and alliances around the world that depend on US domination shift or crumble. My 2c.
But besides, with the rightward, populist/religious nut tilt of the US and corporations being able to bribe the President to get what they want without repercussions (Disney, Paramount, Meta, X, etc), I don’t see how the US is much better. All of the branches of government are giving power to the President that should be theirs.
Equilibriums in geopolitics are inherently unstable, states naturally compete for their own self-interest. No state will be willingly co-equal with another unless some actor with greater power forces it into that position.
To your last point, given the state of the US, it would probably be better for the world if the EU were on top at the moment. But they will not be.