Back to the discussion: We clearly have very different belief structures. I don't think that courtesy is something that must be earned, I think it is a core value in civil society. But apparently you think that being polite is a burden because, as you say, "you have to step around people's feelings." I think that is exceptionally selfish and instead believe that politeness and civility are a baseline of what we owe each other in society. So, I think you have things backwards: I think courtesy is the default, and hostility is something you "earn".
Of course you say that anyone who bristles at your blunt and rude behavior has thin skin; and if they don't like your behavior then they can call you an *******, because you don't care. Well, again, that is extremely selfish and considers the dispute only from your perspective: We (being those who appreciate civility) don't want to call you an *******; we don't want you to be an ******* in the first place.
And, for the record, I don't think you are being an *******. Just picking up on your rhetoric and using it for discussion.