If Thanos had, instead of randomly wiping out 50% of all living things, he had instead in each species wiped out only the dumbest 50% what would the reaction of each avenger have been?
I mean, he could have just created 200% more resources as well. Or he could have equally redistributed all the resources. The problem he was trying to solve would still eventually happen again, because solving the problem relies on everyone working unselfishly, which is simply not possible when humans are involved.
I think he should have cut the pregnancy rate to a third of what it is now. No one would notice. No one would die or be missed. There'd just be a lot less people within fifty years.
OK while that would be a better idea the thought that no one would notice is laughable. We have detailed pregnancy rate records going back 75 years, an immediate 30% change would definitely raise a lot of red flags.
I think he should have made everyone half size. Then they would have only needed half as many resources plus there's a little tiny, angry Spiderman jumping around.
I kinda like the idea of randomly distributing how much each person gets shrunk. Each person ends up anywhere from 99.9% to 0.1% of their original size. Think of the added chaos it would create.