The problem with quoting history to justify your bigotry, hate and oppression of another is how far back will you look? What if you are questioned, "what happened before that point in time you quote?"
You say this group of people are descendants of some who invaded your lands. What happened when your forefathers came to this land? Who did they displace?
You say this food is foreign. Do you know how many of your foods were foreign to these lands at one point in time?
Yet humans are the ONLY ones who consistently hate & kill each other quoting "history"
ONLY... ones