I'd correct your latter statement to "most recently, the American political system makes no sense". Prior to Obamacare, every major entitlement program, from FDR's Social Security to G. W. Bush's Medicare Part D prescription program was passed with large bipartisan majorities, strongly suggesting they had wide majority support.
Obamacare famously did not, heck, it only passed within the Democrats by a whisker, and a lot of them found themselves spending more time with their families after their next election.
So any sane plan by Team Obama to implement it should have factored in very strong resistance in a lot of places. Heck, I along with 71% of the people in my Purple, very much not Red, home state of Missouri voted in 2010 to outlaw mandates (http://ballotpedia.org/wiki/index.php/Missouri_Health_Care_F... ) and then in 2012 62% voted to outlaw the creation of a state exchange unless authorized by the people or the legislature (http://ballotpedia.org/wiki/index.php/Missouri_Health_Care_E... ).
How about, "Because I have a fucking clue and could see that the ACA would make things at net a lot worse, and very possibly result in my premature death?"
Did you even note the vote was almost certainly symbolic? Not that making the most firmest statement (almost 2/3rds of Missouri voters) was pointless.
Anyway, you're focusing way too much on the micro-details of political promises. I prefer macro reality.
ADDED: ah hah, I now see the ACA is in theory going to save you 20% over your previous costs. No wonder you're defending it. I just hope for your sake you don't e.g. experience a shift from access to healthcare to access to a waiting line, or as Obama himself said, Liverpool Care Pathway style, you don't get a pain pill instead of treatment that will save your life.
It sounds like the rest of your views are based off of your beliefs of how things will play out, which is of course difficult to argue about.
These particular long term views are relevant in the context of my likely (at the time) symbolic Proposition C vote; it's indeed difficult to impossible to argue about them, but I hope I've at least demonstrated a basis for my "Obamacare belongs in the ash heap of history" mid-2010 opinion.