Since I read the list for quite a while, I think it could be interesting for all of you to learn the view of someone not being a contributing member of the project.
Alex, the first impression entering the list is, that *you* are the only one project leader here. At least it was my first impression. And by the way, have you ever considered to change your attitude towards others? This seems not to be an option to you as I cannot find it in your list of choices. *This* is arrogant indeed, because it implies that your attitude may not be correct all the time (2nd choice), but well, you just don't care and won't change it anyways.
Now you have the outsider's *opinion* and I am not going to judge any other point in the discussion now. Maybe later if requested to do so.
You should really consider changing your attitude instead of putting it as an absolute fact, not allowing others to mention that they don't like it. Or just think about it as a first step. It could be a good choice to have a break from the project for one month or so because it will also change your view on things ...
Best regards,
Oliver