Indeed. If one takes words apart, such as NAZI, one arrives at National Socialist. Not many Liberals like that.
In the case of Liberals, the word has simply been stolen from those who stand for liberty. Liberals are taking liberties and granting themselves rights that they like to deny others. Free Speech comes to mind.

As Brigitte Gabriel said:

We must throw Political Correctness in the trash can where it belongs.

This also applies to symbols, which are the depiction of words. Probably a good subject for another part of the discussion.

The fight will not be won with violence. It will be won with removing the notion from common understanding that Political Correctness is beneficial to society,

This does not mean we should demean people to hurt them. However, it is no ones' right to be protected from (hurt) feelings. That very notion is ludicrous - and demanding it is a sign of collective mental disorder, as Michael Savage recognizes.

Furthermore, as Carol Quigly in his major work Tragedy and Hope in chapter one notes, and I paraphrase:

The extinction of a civilisation is preceded by the increase in {collective) mental illness in society.

... we are seeing an increase in collective mental deficiencies being pushed as a new norm for all.

Love that subject - because it is THE most potent weapon that we can reclaim without shedding blood.