User blog comment:Looperreallyreallysucks/Pure Evil Discussion - Avengers: Endgame/@comment-24758512-20190509023302/@comment-25075214-20190509030126

But what about the stones? It was told in the movie by the Ancient One that if the stones were to be removed from their proper timelines without being returned, it would end up causing endless chaos. If Thanos were to destroy the Stones after completing his mission to recreate the universe out of the old one, the result would've been far more disastrous, and he would just turn a blind eye to it.