Too late by a century to worry about that. Extinction is so far advanced. Consider large animals: 50% on earth are the ones we raise to eat. Of the remaining, 46% are ... humans themselves!
That leaves 4% of all earthly animals to be 'wild'. A negligible part of the 'ecology'.
We're not going to put the genie of terraforming (reforming the earth to serve human needs) back in the bottle. The bottle is smashed; the earth is one large human park.
Anyway, still we need to try not to destroy the atmosphere and water because they're critical to human needs and processes. That's reason enough.
That leaves 4% of all earthly animals to be 'wild'. A negligible part of the 'ecology'.
We're not going to put the genie of terraforming (reforming the earth to serve human needs) back in the bottle. The bottle is smashed; the earth is one large human park.
Anyway, still we need to try not to destroy the atmosphere and water because they're critical to human needs and processes. That's reason enough.