Listen man I'm not a believer either, i'm not saying you should be following any religious doctrine. I'm just saying there's no material difference between respecting someone's cultural or religious sensibilities. You're alienating religious comrades for what seems to be no reason other than an imagined, arbitrary distinction between religion and any other way of life.

I could use your same logic to say that i should be able to use the n word because i arbitrarily decided that the set of social rules around why i shouldn't don't apply to me, and i shouldn't be expected to follow them.

It is clear that your outlook on Islam and Mohammed isn't based on a wide breadth of knowledge on the subject, which isn't particularly surprising or unique. This is okay though, because I've been noticing that there has been a concerted effort from some Muslim users on this site to try to reach out and inform comrades about misconceptions like what you've mentioned here. I saw a post by u/Saif, moderator of the new c/islam, regarding another user's perception of Aisha ("raping a child") that might clear that up, for instance.