There are conservatives who support real injustices who mislabel efforts against ethical wrongs as "PC" so they can ignore them. But there are also people like the OP who mislabel responses to ethical wrongs as "PC" so they can make the fallacious leap to the conclusion that anything labeled PC is a real ethical wrong and thus PC is good.
ron,
You have raised an interesting and important question in moral philosophy and it is a question that is implicit in the OP.
What is 'political correctness'?
My understanding of political correctness is that it is a normative code, founded on ethical principles accepted in a society. Ethics is about considering what is right or wrong and political correctness is the application of ethical principles coming from such consideration. Unfortunately the term has become somewhat muddied over time, maybe partly because of the word 'political'. I have also become aware of some negative connotations in usage of the term in certain quarters.
Whether we regard some action as 'politically correct' would (in my view) depend upon the axioms on which such correctness is based. For example, in a society which values fairness and the rule of law, I would expect PC to be the practical application of fairness and the rule of law.
Can mistakes be made in the application of PC? Of course. However, to cast PC as good or bad per se is a mistake IMHO. For example, what might have been PC in Nazi Germany may not be PC in today's Germany. The ethical axioms have changed, which I think is a good thing.
Alex.