Overpopulation

How should overpopulation be dealt with?

Natures natural adjustment mechanism is disease. But that is being interfered with. People are living longer than ever due to advancements in medicine so much so that it isn't sustainable anymore.

Then again, how can Jew be an "atheist" and at the same time say "I'm God's chosen and the this land was give to us by God, so we have more rights to it than goyim."

I sense hypocrisy. It's like Ayn Rand opposing altruism and at the same time expressing altruism towards Jewish people.