Viet Store Lao Vs Cambodian Vs Thai Vs Viet People?

Lao vs cambodian vs thai vs viet people? - viet store

Why we all hate each other? I went with a guy from Cambodia and her parents have stereotypes of Lao girls and I went into a kind of Viet and his parents took him with me to break, because I'm not Viet. And I know that Thai people always hate on the Laotian people first hand, because every time I walk into a shop in Thailand, which always seems dirty. Why is this so? I think we all have the same morals and we all eat the same food. Is there a reason to hate, except that the "best of Asia?"