Well, there are some singers who have modified earlier songs or simply left verses out of them.

Randy Newman I don't know if he has modified "Rednecks" or not. And I haven't heard the song "Short People" on the radio in ages, but that doesn't mean much.

Meanwhile, the right wingers including politicians have developed a way to get under Democratic skins for some time now: truncating the name of the Democratic Party to "Democrat Party". I used to notice it every time they did it, but now I'm beginning to ear-adapt to it and I believe it has crept into usage by those who do not mean to offend, just because they've heard it so many times.