Yes. Think of all the different cultures you encounter on a long auto drive from Madrid to Moscow. Now drive from LA to Bangor, similarly long, if not longer.

Yes. Think of all the different cultures you encounter on a long auto drive from Madrid to Moscow. Now drive from LA to Bangor, similarly long, if not longer. Is it no wonder, then, we might feel like there are "different" Americas in the broad expanse of the US? And "different" Americans? While I agree with you in part, another argument might ascribe many aspects of a perceived "polarization" to mere geography.