Consider it a regional cultural difference, then. Or generational/regional. And for the last time (hopefully), I did NOT demand an apology from David Mack for his having called me "Dude." I indicated that I don't like to be addressed that way because I'm female - and yes, there is a way to tell. While it would have been nice if he'd just said something like "oops, sorry" (no more 'groveling' than a simple "excuse me" or "sorry" for bumping into somebody on the street or in a hallway), I certainly never DEMANDED it.And there's very definitely a cultural disconnect between Canadians and Americans on some issues - I've seen it happen on lots of sites.
I know a lot of Canadians, both personally in the real world and online. There is a small cultural difference, but no more so than between someone from Iowa and someone from California. The things you have described previously as a cultural difference (such as expecting an apology for being called "dude") are not cultural differences, those are personal differences.
So would everybody just STOP accusing me of something I did NOT do?