The De-unification of the United States

Again, I need to preface all of my political ramblings with the disclaimer that I don't much care for or follow politics, and as such sometimes I can be accused of "talking out of my ass" or being misinformed.  Still, I do hear things from time to time and I am sure that my common sense and integrity is stronger than that of almost all politicians...

So, without further ado:

1 - When the hell did the country become so divided?  Why are all politicians seemingly on the far left or the far right?  Why is "moderate" a dirty word?

2 - What the hell happened to "sportsmanship" (for a lack of a better word)?  Didn't there use to be a time that even if you lost an election you supported the winner?  Particularly when that winner is the President of the United States and he is chosen by the people he is meant to represent?  Why can't politicians get this?  Why can't they support "the winner" and those that elected him.  [This is not a pro-democrat argument but a pro-UNITY argument.]

3 - Why can't we get stability in this country?  Obama passed his "Obama-care" for example.  I understand it was/is controversial, but it was passed.  Now, before it truly even goes into affect Republican candidates are declaring that if they are elected to Presidency they will repeal it.  What the hell is that?  Obama spent a great deal of his time in office struggling with all the push back from the Republicans and making concessions and "deals" to finally get it passed and now Republicans are saying "eh, never mind"?  And then what?  They'll spend half of their presidency fighting to put something else in place?  This isn't progress.  This is the definition of running in place. If politicians could stop politicking for just 2 years we might actually get something meaningful.

4 - While we're on it, why the hell can't someone just go into office and let their accomplishments speak for themselves?  I'm sure I've talked about this before, but it's ludicrous that our elected officials spend most of their time in office campaigning for re-election or their next move.  DO THE JOB YOU'RE ELECTED TO and if you do it well enough trust that will be enough.  You are paid way too much and compensated way too greatly (pensions and life-time health benefits, for example) to do NOTHING...