@Ralphwiggum yes, that's what I took away from what you wrote because that's what you wrote. Apologizing and saying "I didn't mean it that way" because you had no clue - as I did until a half-hour ago - that the term is offensive isn't an example of being defensive, it's an example of... apologizing for being ignorant. A lot of people have to do that often because we are not omniscient beings, we are not all of equal intelligence, we don't all have equivalent means, we don't have equivalent education, and we don't have equivalent time. And you're right, if I proceed to use that term around someone who shared why it made them uncomfortable, I'm probably not a good person. Conversely, if I used that term unwittingly - because I had no idea of its origins until a half hour ago - and then someone started yelling at me and calling me a piece of shit racist without any context, I think that I would be pretty confused.
All of which points to why "intent doesn't matter" is a total nonsense term. It's a meme that people don't really mean - as you yourself just noted - which is a pretty ineffective and hollow way to pass along ideas.
It seems like the point you're making because you keep saying the term but then defining it in such a way that it's the exact opposite of its actual meaning. You can say what you're trying to say without distorting the foundation of interpersonal relationships. It seems like you want people to be more empathetic toward marginalized people and understand that certain terms that seem inoffensive can be hurtful - that's great and I agree with you. The rest of the language games are unnecessary.