The prospect of a (Jeb) Bush vs. (Hillary) Clinton race seemed emblematic of a government that was a democracy in form, but not in practice. And then along came Trump who nicely put everyone I know (myself included) in either pro-Trump or anti-Trump camps.
All forms of change that aren't voting are either de jure or de facto illegal. Sure, you can march... on a route cleared with the authorities... with a permit 90 days in advance... as long as absolutely nothing untoward happens within two blocks.
But there is a very real difference in policy between rural Alabama and Chicago. In no small part because of different parties exercising control in those localities.
I believe this difference exist. But I attribute it mostly to "rural" vs. "urban" part - and for far enough places, also to difference in cultures between the two locations. Rural Alabama has a different lifestyle, different market, different pressing problems than urban Chicago, different individual needs - which may result in people in those two locations overall promoting opposite policies.
How well these differences overlap with with Dem/Rep or left/right belief clusters is, I think, mostly incidental.
The parties, to the degree they do differ, do position themselves on opposite sides of the urban vs rural divide.
And nowhere in these splits - neither in Democrat/Republican, nor in left/right - is there any notion of actually looking at the problem and trying to find an actual, effective, efficient solution, that maximizes the desired impact and minimizes undesired second-order effects.