And explained very well, right here. The key quote:
Since we’re identifying basic goals here, let me name one for the right: degrading the standard of living for the large majority of the American people. You degrade the ability of everyone to make a decent wage by destroying unions, one of the traditional models for how to improve the standard of living of broad groups of the American people. (Including, incidentally, those of non-unionized workers, whose wages were historically inflated due to the threat of unionization.) You eliminate pensions; you replace them with things like 401ks, which don’t provide enough for retirement. You oppose health care reform; in fact, you work to degrade Medicare with a voucher program that doesn’t keep up with the cost of health care. You eliminate social services and government programs everywhere. You do all of it in the name of the free market.
Read the whole thing, as we say in Blogland.