I disagree with your myopic depressed outlook except for the first part: how do you motivate yourself to take on the insane roller coaster ride of having kids?

I disagree with your myopic depressed outlook except for the first part: how do you motivate yourself to take on the insane roller coaster ride of having kids? You don't, and nobody is. That's why the future is transhuman clones grown in pods by the state.