Like many wikipedia articles in areas where there has been intense political propaganda efforts, the one on debt crisis [1] which you quote but do not cite engages is badly confused and influenced by propaganda -- and the four sources for the sentence you quote are an opinion piece, a blog post, an infographic, and broken link, none of which (except, perhaps, the content which once was at the broken link) directly support the thesis of the sentence. By Wikipedia's own standards, that article is bad.
And while you say that the current issue with the House isn't the cause or the effect of the debt crisis, the only US examples of so-called "debt crisis" linked from the Wikipedia article you lean on are the current and 2011 debt ceiling debates. So, its ironic that you ask "Anyway, do you disagree with Wikipedia?"
Anyhow, the defining characteristic of a debt crisis is default risk, not debt vs. tax revenue (debt service cost vs. GDP -- not total debt vs. GDP -- is probably the best "easy" numerical measure for fundamental default risk, but the real source of default risk in the US is political games like the ones you discount from the "House of Immature Children".)
[1] http://en.wikipedia.org/wiki/Debt_crisis