I don’t understand what the goal behind making this comment could have been. You start off admitting to using ethnic slurs with an almost “whoopsy daisie” tone. The comment you replied to told you the situation but you still add a hypothetical situation about when you think it would be reasonable to use them. And the appeal to “natural reaction” to defend something that should’nt have happened in the first place. “When people question why I shot a guy, my natural reaction is to shoot them too” doesn’t excuse why you did the thing that got you questioned. There is no situation where you are on the right side when using a slur.