Has racism(ethnicityism) become the liberals FINAL bulwark of defense?

No, racism has become the losing sides first line of attack. Look at teabaggers with their witch doctor posters and their stuffed monkeys. If you can't take the criticism then stop using race as a political strategy to appease your base( white southerners). The losers of the last 3 elections claim that liberals are getting the living bajesus beat out of them? That's laughable and sad at the same time.