I think the world would be a much better place if we just nuked every third world country and start over from scratch in those regions
Why do you think it would be a good idea to kill so many people?
There are too many people in this world and not enough resources to feed everyone.
While wanting the world to improve is a good thing, killing some for the benefit of others is always a bad idea. It is not our right to choose who lives and who dies; it would be very wrong if countries started exterminating whole populations of people.
I'm not sure that's not a bad idea.
We actually have sufficient resources to take care of all the people on the planet, we are just not distributing them effectively. If we took some of the resources from people who are wasteful and have too much, and gave them to the poor, then everyone would have enough to have a happy life.