You all are all fools, Madara did bring peace, he brought the world together against a common enemy, him. His failure was to realize that he was being used all long by BZ to resurrect Kaguya. Have any of you seen the movie called The watchers or something along the lines by Marvel? It essentially was a movie with a villain inspiring to create a plan where the world views a single enemy as a huge threat, enough to unite them together to defeat said person, which was the dude who became a xerath like creature (for those who play league of legends).
So yes, Madara did create peace for the moment.