I think that focusing on our differences causes.........differences! Of course we are all different and differences in our speech can be a celebration of that. When we think of another as somehow inferior because of this kind of difference, though, we set the stage for our own basest characteristics to come to the fore.
"Every time I go to town, the boys start kickin' my dog around" Well, it is a music forum!
Sorry, Mooh. It's me being overly defensive rather than you being superior.

:-)
Chip