This has to be my favorite. Thanks for showing me how it's done!
The difference is that I was not stereotyping. I didn't imply everyone from those areas was trash. I merely said she was trash and from those areas. Your comment was simply an attack on an entire region.
Geographically accurate bigotry on your part would have been to say "if Shakespeare had been from the Ozarks" or "If Shakespeare had been from Midwest." It's still bigotry, but at least the appropriate region is attacked.
That's how it's done.