"Israel's security barrier has saved thousands of lives both Israeli and Palestinian. Israel wouldn't need the security barrier, if acts of incitement and terrorism against it stopped."

It is still a barrier with which one faction imprisons another.

Ipso facto A PRISON! And since it is not an enclosed building, or complex of buildings, it is a PRISON CAMP!

This is a term with which you would have NO problem whatever, were it ANY other nation than Israel doing the imprisoning.