There is no such thing as 0 health problem when you’re over weight. They have health problems. They just fail to associate them with their weight. Even if they are just mentally unhealthy. Emotionally unhealthy. Being fat is damaging either physically, mentally, and/or emotionally. And if they think they’re smart enough to claim genetics for their weight (or even it’s true) then they’d be smart enough to realize they should never had kids and pass those problems on. If your health problems are genetic, DO NOT HAVE KIDS. Why put a child through the same abuse just cause you “wanna have kids”? Stop being selfish and start thinking about humanity as a whole.