"After seeing the forest he made I'm not sure I'd trust him with anything even remotely resembling life." Not that either of them are alive in the same way that a tree is, so he might actually fare better with mechanical sentience than trying to create a human from scratch.

"That is sadly the way of things, because those who actually desire such power are the worst at wielding it. If they were truly competent in handling such things they'd know better then to ever attempt it. Which means the ones we need to be in charge, never are." He sounds bitter, because in his world he's caught between the clear terrorists that he's associated with, and a heroic faction. The problem being that the people who are in charge of both are not competent to lead.

Doomfist is a narcissistic egomaniac. The leadership of Overwatch resorts to the same tactics as the terrorists because they're so fractured as an organization.

Neither deserve to win this stupid war over the fate of the world.