Chili is not an ethnicity. It is a dish, typically a stew or soup, that originated in Latin America, specifically Mexico.
The term "chili" refers to the dish itself, not a specific group of people. While the origins of the dish are rooted in Mexican cuisine, it has since become popular and evolved in many countries and cultures around the world.
The dish is made with various ingredients, often including chili peppers, meat, beans, and spices. The specific recipe and ingredients can vary significantly depending on the region and cultural influences.