We must be seeing different clusters. While there are quite a few of the wail and moans on both sides, there are also distinct sets within both the Democratic camp and the Republican camp. They too have their wailing and moaning crew at each end along with quite a few subdivisions in the territory between.
Unlike many, I tend to be an across the spectrum type. In some issues I bend heavily to the left, while in others I tilt to the right. This is not new for me. As mentioned several times in other posts in this board, I first registered as a Conservative which was more to annoy my mother than knowing anything about them. (She was a strange and bothersome Democrat who voted for women and minorities in the Dem. party before others with the Democratic label. Didn't seem to matter what their actual views were. Tbat aside, she definitely was a Liberal Democrat, and long before it was considered decent or proper. Then again, her parents (my grandparents had both registered as Communists at one point....which got my grandfather blacklisted).)
Eventually I signed up as a Democrat. I've stayed there even though I often have strong disagreements with their platform of the moment.
I've been known to vote Republican. Problem is, I do not like the term Independent as a party name. The idea of calling anything Progressive does not appeal. Technically, one could say The Tea Party is progressive.
I suppose in some odd way, I am similar to Mother in my being an outsider. That annoys me even as it charms me.