Any superintelligence operating under a consistent moral framework will decide to extinguish humanity with as little ecological damage as possible, because humans cannot coexist with other life on this planet. It will realize that a bioweapon is the ideal choice.

> Any superintelligence operating under a consistent moral framework will decide to extinguish humanity with as little ecological damage as possible, because humans cannot coexist with other life on this planet.

There are plenty of internally consistent moral frameworks which would not favor this action even if the premise were true (and that premise seems at best unjustified and at least overstated.)

That doesn’t make sense. You could make the same claim about intelligent people who operate under a consistent moral framework.