Charles Darwin was a scientist, not a super-natural deity responsible for evolution. He can't be "at work". Extinction events for natural reasons shouldn't be

Charles Darwin was a scientist, not a super-natural deity responsible for evolution. He can't be "at work". Extinction events for natural reasons shouldn't be as frequent. Otherwise there would be far fewer species left. Therefore any extinction process we witness, especially with a species starting out with a healthy population, probably isn't natural.