There's second hand fat as well. As well as they steal the childhood from any child they have. Normally you'd have a pretty active childhood, then people who would end up fat would start putting on weight towards the late teens.  Now kids are obese at 3 and completely fucked by 16. Tthey've had, and probably never will have, any life experiences apart from shoveling the next handful of food into their gaping maws.