Well, you seem to be saying Democrats and Republicans are two sides of the same coin and are equally responsible for the problems of conservatism. I'd say the main way in which they're two sides of a coin has to do with the character of their vices: hyperfeminnie versus hypermasculine.
Other than that, it seems to me an oversimplification to say they're equally to blame for the country's structural problems. There's certainly enough to blame to go around, but liberals and conservatives work and fail in different ways.
And government policy has swung rightward over the last several decades, because the Democrats stopped being a working class party after Reagan, as Thomas Frank points out. So the blue-collar workers aren't represented by either party (except by fake populists like Trump).