You don't see why a slur that is targeted at a disadvantaged group is more offensive than a slur that is targeted at the group with more social power?

Again, your statement is that your freedom to use potentially abusive language is more important to you than stopping people from being hurt. Intent doesn't matter. It really doesn't. If you hit someone with a car accidentally, they are no less injured than if you hit them intentionally. And once you have been clued into the fact that your language is hurting people, an insistence on continuing to use such language means that every time you do, you are deliberately engaging in hurtful behavior. It's meaningless to claim that you don't mean something to be offensive when you know that it is offensive.

You may judge for yourself what kind of behavior that is. If you are honest with yourself, it's not too hard to figure out. If you persist in this, well, let me be careful with my language here and not use any slurs. You will be an insensitive, dishonest, and flagrant enabler of ablism and bigotry.

In any case, I don't get the impression that you're interested in listening to anyone else on this front. And I've said all that I have to say on the subject. Feel free to reply or not to this comment, as suits you, but I am done.