The "He shall judge among the nations and rebuke many people" bit is what you should be focused on in this instance not the Peace that comes after it. The Judging the nations thing... that is a little thing in the Bible called Armageddon, The Day of the LORD, Judgement Day, The War of God Almighty. The Abrahamic religions were ALL taught that God would intervene and END this world not transform it.
Dan2:34 While you watched, a stone was hewn from a mountain without a hand being put to it, and it struck its iron and clay feet, breaking them in pieces.35 The iron, clay, bronze, silver, and gold all crumbled at once, fine as the chaff on the threshing floor in summer, and the wind blew them away without leaving a trace. But the stone that struck the statue became a great mountain and filled the whole earth.
The Kingdom of GOD is not a transformation of THIS world but the implementation of an entirely new management.
So instead of working for world peace and reconciliation you’re waiting for God to wave a magic wand and we will all love one another? If I don’t clean my house it gets dirty. God gave me hands to be able to clean up after myself. If I just waited for God to come and clean my house up for me what do you think would happen