Right vs. left, just stop that nonsense. There has been no right and no left for at least a decade. The divide is between extremists and people who stand with both feet on the ground. Unfortunately, it looks like extremism has become more popular.
I'm not sure I agree with you completely. I agree that extremism is more easily found, I'm not sure if that's because it's more popular or if it's simply because more individuals are willing to express it.
I do believe that both the right and the left engage in logical facilities (you should pardon the pun) left and right. A few examples:
Death penalty and abortion
Reducing taxes and budgets passed
Objecting to "nanny state" (vis a vi public support) by calling it racism, bemoaning food assistance while cutting access to birth control (Family Planning funding)
Loss of constitutional freedoms vs. gun legislation vs. disenfranchisement
Effectively limiting consumer protections (by Strengthening monopolies) while claiming to be pro-consumer
Preventing private right of action and forcing consumers to use binding arbitration (Might as well not even bother, you're not going to win even if you are right)
and on and on and on. I think the average US person has simply either gone nuckin' futz or they are lied to so completely and pervasively as to have no worthwhile information to base a rational decision on. It's so bad that I don't even bother talking to people anymore (haven't for the last 20 years). It's so bad that I am seriously limiting even discussion in fora such as here.
Worse, it's no better in other countries, and even worse in some.
I blame it on the commercialization of journalism, actions by special interests, and the lack of critical thinking skills being taught in public (and many private) education. The only answer I've found so far is to simply smile, nod, and back slowly away from the more vitriolic of them, and to not bother with media news outlets anymore.
NPR, PBS, BBC and a few others are attempting to get people talking to each other. So far, I've witnessed this devolve into brutal beatings twice. Yeah. Like I'm going to go "have a reasonable discussion with someone I don't agree with".