

If a person drinks 3 liters of water a day for their whole life, that’ll be about 100k liters total. Assuming it takes about a minute of actual drinking time to finish a liter, that’s only 100k minutes, or 1,667 hours of drinking time, so it’s no wonder we’re not experts.
Those aren’t mutually exclusive, though. Even if 99.9% of a species fits in perfectly with the environment, if that last little sliver destroys everything, and the rest of the species is unable and/or unwilling to stop them, then we destroy everything anyway. Sure, it may not be ALL humans, but it’s still humans.