This part won't change. I don't believe there is a true or fixed political center, and I don't praise centrism as a virtue. So you're left of the Republican party? Big deal. The Republican party is insanely right-wing now. The whole country has moved rapidly to the right for the past 30 + years, being lead by the Republican party which itself has been moving right even more rapidly than the rest of the country. This is exemplified by the account that some time in the early-mid 90s, Barry Goldwater allegedly said to Bob Dole "We are now the liberal wing of the Republican party. Can you believe that?" It really is hard to believe. And this is of course why Obama is a socialist tyrant for implementing a heath-care system the Republican party came up with. He was too late, the GOP had already moved far right of that.
So when it comes to the supposed extremity, stubborness, and incivility of Washington today, I do put more of the blame on Republicans because they're the ons that have been dragging the country into crazy, radical, la-la land for decades.
But whatever the reason is that the tone has become so uncivil, whoever started it, does not change the fact that I do not really expect civility to be met with civility at this point. We've crossed that horizon.