Indeed, and Jews SHOULD be living in the West Bank. But as citizens of Palestine. Zionism had accepted Partition before, and is accepting it now (at least a majority does). Ideally, Palestine should agree to having the settlers stay where they are now. But would the settlers agree? No, they would say they were being abandoned to their fate, and they will insist on relocation, compensation, etc. So there is no point for Israel to negotiate hard on this issue.
Jordan foreign minister says to speak with Kerry on Israel-Palestinian conflict (Reuters)
from the article: Here come the true settlers