Why is this hypothesis incorrect- plants and animals do not adapt to their environment?

This theory is incorrect because if it were true all organisms would not evolve and so nothing would survive a large change in the world like climate change, new predators or natural disasters. so after a while when a major change happens everything would die. and there is proof of evolving plants and animals. This theory is incorrect because if it were true all organisms would not evolve and so nothing would survive a large change in the world like climate change, new predators or natural disasters. so after a while when a major change happens everything would die. and there is proof of evolving plants and animals.