That's a good belief but humans can screw up anything, no matter what God does. That's why humans were given free will, to choose to do the right thing or the wrong thing.
IMHO, our biggest danger is overpopulation. We've already surpassed the carrying capacity of the planet.
IF everyone ate the good foods they should, vegetables, fruits in season, fish, etc. rather than chips, candy and other junk foods, there wouldn't be enough to feed the global population.
I agree with you completely about overpopulation. However, I would add that it’s meat consumption that really needs to decrease and be replaced with more sustainable plant consumption.