1- Kidnapped wives and raped them
2- Tried to start a war with 100 people and got owned by a dynasty and kicked out and was forced to live in the mountains and eat tigers
3- They were too ignorant to talk to and acted like chimps raiding food at sight and so they were kicked out
4- They were a nationality practicing gay sex and forced it upon their kids. Once the higher ups found out they were furious and their punishment was to be banished from the land we know as China.