I've always been upfront about my level of skill with metaphors. But typing from my own iPhone, I think that it is possible to do an analysis of the situation without resorting to such comparisons:
The two parties disagree on the correct policy for many situations.
Our political system is designed to resolve such conflicts, in part, through reference to (a reasonably accurate proxy of) public opinion.
Public opinion aligned such that the democratic policy for healthcare was the one enacted.
Republicans used nearly every trick in the rule book to try to prevent this. They lobbied and campaigned and even took the issue to the Supreme Court.
Now that their objections and options within the system have run out, they are trying a new tactic: refusing to continue governance until this one issue is resolved in their favor.
Moreover, they have arranged matters such that the longer they are denied, the more pain the country is in.
The reason that Republicans are to blame is that they are not negotiating in good faith.
The intent of my Arson and Wife analogies is to illustrate that the Democrats are not obligated to negotiate on every possible proposal. Personally, I think that the importance of Obamacare on both policy and political levels is great enough that a suggestion to repeal or delay it is tantamount to inquiring about DS's wife. No such proposal is reasonable.
Finally, the first two comparisons made, about terrorists and tantrums, was a proposal for how to strategically frame the discourse. Democrats often let their opponents frame the debate and those were rhetorical ideas about how to better deal with the media.