2.)"Yuon" was a term used in the context of commence and trade to refer to the Vietnamese people. They do not consider this a derogatory term.
WARNING:technically, the orgins of "youn" was not used to denigrate thy vietnamese neighbor. however, it kinda,sorta became one since the world doesn't know how to get along, so, please,be kind to your neighbors.
see those youns hiding in the rice patties, they are going to kill us.
yo,youn-a! wut up beeitch? where my money?
you give me 5 youns and give you one. nice doing business with you.