Sorry, I wonder now Texans are very kind, but in history in wild west age, every white man was a racist. I'm from Poland and polish people are associated with thiefs xD For real I like Texas very much, and I'm planning to travel to this state
I'm not sure. They don't know Zebras after all. I think slavery comes with ships and riding the tides. Ponyville doesnt even have a harbor. Just saying. Not that towns without habor have no slaves. But it's more likely that Unicorns enslaved Earthponies or something like that.
You may be a bad person, but AJ is the most likable pony around! Besides, "zebra sense" isn't racist, because Zecora admitted that she has a zebra sense when she said that it didn't bring her to Ponyville!