You cannot eliminate selective pressures, you just change the niche. Changing from a circle peg to a square peg doesn't eliminate the requirements for a peg to

You cannot eliminate selective pressures, you just change the niche. Changing from a circle peg to a square peg doesn't eliminate the requirements for a peg to fill a hole or die. You just fill different holes. This is not preventing survival of the fittest from working, it is just changing the meaning of 'fittest.' Edit: There is an analogous claim you could make to highlight the absurdity of this: Say we are talking about a plane crash and you said "We should be glad the plane crashed: it means that gravity is still affecting humans, as it should!" Flying planes doesn't invalidate gravity. Gravity is a law of nature, and it works whether we fly or not. You are still bound by gravity even if you leave the ground. Survival of the fittest is a law of nature. You are still bound by it, even if you find it easy to survive. Nature doesn't care if you are successful by human social standards; that is simply not a consideration the laws of nature take into account.