Should animals become extinct

This question is slightly confusing. What exactly does it mean? Though I will try and answer.

This is more of a viewpoint sort of thing. A question that can be put up for debate. Some people think that we should just let the animals be. Life is life, if they go extinct it doesn't matter. Others think that we should protect animals endanger of becoming extinct.

Standing at a logical point of view. It depends on the animal. If the animal it necessary for the environment then no it should not need to go extinct. If the animal is not necessary then let nature take it's course.