I think this is the "pot of gold" that people employing political correctness are hoping for.

What's unclear is: A) Is this largely effective? B) What are the side-effects of this?

For example, let's suppose the way PC worked was the same, but the topic was reversed. Let's say that "anti-American" (criticizing the executive) views were labeled as xenophobic and politically offensive.

Would that serve to increase political consensus or intensify resentful disagreement?