[talmand]

>> Democrats and Republicans, through decades of policy shifts, now represent views they have historically been against.

That's the part I'm disagreeing with. I'm not arguing against a "sudden switch" as you put it. I'm arguing against the entire notion that the two parties switched at all, be it suddenly or over decades. The two parties have adjusted over time to their needs over the years to the point that, fundamentally, they are not that much different other than their fringe elements, which does not define them as a whole.