>>1681804You're mixing up your time frames anon, Moses was already on his way out in the 70s. When Moses was reaching the apex of his power in the 40s and 50s the city and the subways wasn't far from its golden age, and it was Moses who helped hasten their decline, culminating the city hitting rock bottom with bankruptcy and the vast rolling back of sanitation services in the 70s.
That said, Moses was not the dastardly mastermind behind white flight, he merely facilitated their way out in a way that hobbled those who chose to remain (as well as those who had just arrived). He could have no more held back the migration than he could have stopped the tides.