There need to be no blood shed. If the Palestinian leaders accept the existence of Israel and pledge to live at peace with them they can have their State and the future will be wonderful. As long as the Palestinian leaders take blood oaths to destroy Israel at the earliest practical date then Israel, and all rational people will resist a Palestinian State.
Did Israel establish itself without waging a guerilla war against the British in Palestine? No.
Often nations insist on establishing themselves in bloodshed because that is part of the newly born national identity.