The premise of the idea is bullshit. "Let's not say certain things so we don't offend ANYONE."
Example (stolen from George Carlin, requiescat in pace):
Crippled -> Disabled -> Handicapped -> Differently abled (not always, but sometimes).
Okay, "crippled" has taken on a derogatory meaning. So I understand that. "Disabled" is not inherently offensive, and "handicapped" most certainly isn't. And "differently abled"...fuck, it's not that they can do stuff different ways, it's that they can't do stuff most of us can. I, for one, used to be almost totally deaf in my left ear (and am still sub-standard, but I had surgery and it got better). I wasn't "differently abled". I couldn't hear things in a different way that no one else could. I just plain couldn't hear out of one ear. DISabled. Not differently abled.
And this whole thing down in Houston about "we have to have a minority (i.e., black or Hispanic. For some reason, "Asian" and "Native American" don't seem to apply here) holding the title of Superintendent of Schools." And consequently, they chose Rod Paige because he was black (and though it was before my time, some of my teachers have attested that he drove HISD into the shitter) and then Abelardo Saavdra becaus he's hispanic, and he had the policy of "fuck talking about it, fucking thinking about it, fuck telling anyone in advance. I'll announce what I want to do when I'm announcing the plan to bring it up for debate/a vote, and what I say goes".
Political correctness is BS. It's gotten to the point of "we can't say anything bad about a Mexican or a Black person or they'll pull the race card on us, and there's no way out of it because everyone else is too much into political correctnss to stand up and say 'Bullshit, that's not a racist comment. Sit down and shut the fuck up.'"