As a society, we should require public figures to use politically correct speech, because language is deeply formative. Although we are reluctant to admit this, wider cultural forces influence the way that we think and behave.This is not to say that humans are doomed to follow wider cultural trends, but that the society we are immersed in does have an impact on our actions. Because of this, politically correct speech should be a requirement for public discourse. If we allow people to share sentiments that harbor prejudice without criticism, we allow our culture to spread the popularity of these ideas. Our society's political correctness is not an impediment of free speech or a pointless rule of propriety. It is a measure that discourages widespread affirmation of prejudice.
As creatures with free will, humans can choose to embrace or reject particular opinions. We can choose our beliefs for ourselves and are not doomed to accept popular ones. In a society with politically correct standards, people will still choose to embrace problematic beliefs. For this reason, political correctness does not prevent prejudice. It simply prevents people from sharing their opinions.
[P1] Language is formative- it influences the way our culture thinks and behaves. [P2] For this reason, we should not tolerate politically incorrect speech.