Doesn't the US allow "diversity" by allowing different states to pass laws that their residence find important? I'm pretty sure CA has some specific right to repair laws.
Also, this (to me) is a strange use for the word diversity.
Also, this (to me) is a strange use for the word diversity.
A similar issue comes up around education although things are a bit more even there with Texas and Florida also using the size of their markets to set their version of education standards.