Don't listen to them. Humanity is still in danger despite what they say.
Assuming you can make an artificial consumer that can gain mass and size via consumption, you can plot out growth rates k.
Given that the size of the jaws and digestive system will increase with the size of the consumer (increasing the rate of consumption and growth) so a k of greater than 1, I predict that any artificial consumer will rapidly create its own black hole.
This is fantastic