"If the Republicans take over the House, Senate, and the White House, then so be it."

There is an absolutely legitimate basis for being disenchanted with certain aspects of the Democratic Party but this attitude that Republican seizure of all the levers of government is acceptable is the height of irresponsibility. Dismissing as mere "fear-mongering" an accurate vision of what an unbridled Koch Brothers perversion of our politics is reprehensible.
We see the nihilists on the right hell-bent on destroying every shred of a social safety net. The nihilists on the left seem to be hell-bent on standing aside and letting it happen.
W's administration was a pluperfect disaster on every level. We should remember that the Tea party started largely as a rebellion against Bush for being too moderate. A Tea Party dominated GOP in control of the Executive, Legislative and Judicial branches of government would pose an existential risk to our form of government and serious folks ought not dismiss this inevitability with a shrug and a "so be it".