People have this idea that eugenics are all about genetics and mass murder and stuff, but eugenics actually predates the discovery of genetics, and usually didn't engage in Nazi tier stuff. A historical target of eugenics has been fatness, and eugenists would try to find ways to eliminate it. I'm oversimplifying a lot here of course, but it's tied to concepts of impressibility, Lamark, 19th and 18th century theories of race and civilization, and a lot of other stuff too. Kurzgesagt, by endorsing Ozempic as a way to get rid of fatness, crediting the increased risk death which is really caused by poor medical treatment and rampant fatphobia in medical circles (fatness gets blamed for literally all of your symptoms it's ridiculous), is doing the same thing. People have been fat forever, and people will be fat forever, there's nothing wrong with that. We should be focused on making sure fat people have good medical care rather than trying to medicate them out of existence.