Is using racist language a “made-up problem”? If not, how is racist language different from ableist language?

People who are affected are trying to tell you it's not a made up problem. It is your ego and aversion to criticism and personal development that is telling you otherwise.

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?

But what’s great about this is finding new and creative ways to express yourself! “My points fell on rocky ground” — Biblical allusion. “They believed me as if I were Cassandra” - Greek. “My words fell on them like the sun under an umbrella.” If you want to keep the synecdoche, “Their ears weren’t ready to hear me”. There’s opportunities to be really creative and poetic if you’re interested in language as rhetoric!

Colloquially, nobody will blink at “They refused to listen” or “It was like I was talking to a tree”.