The radical left
The radical left
As a dumb American, I am a little conflicted by the premise.
Many European countries are much older than the USA and I presume they are more homogeneous in terms of population. Yet constitutions in Europe are either newer that the US constitution or they’re treated with much less deferance (eg they’re free game for modifications).
I admit to having spent very little time thinking about this, but I wonder if the US is stuck in a self selection loop? People drawn towards rugged individualism, which is a large component of the “American Dream” come here and perpetuate the cycle.