There’s a difference between intent and impact (which is in and of itself a pretty important concept in antiracism). Basically, impact always trumps intent. If I use a phrase that insults someone else, and I said “I didn’t mean it that way, so you shouldn’t feel insulted”… well, that doesn’t work. It’s a pretty privileged position to say that an ableist expression is value neutral. If somebody is saying that a phrase is not okay with them, why argue? What’s the harm in just going, “Okay, I’ll stop using that phrase”? People don’t generally make up words to get offended at, and certainly don’t write articles (multiple articles, multiple books, multiple YouTube videos…) to try to invent outrage unless they’re trying to discredit this topic. If someone says that your language is harmful or discriminatory, what does it cost you to listen to them and to change the words you use?