I don't really know why they equated eugenics with anti-vax. They come from different trains of thought. Anti-vax would probably be more closely associated with HAES, if anything. It's denial that doctors have any knowledge in the field of health. I'd associate eugenics with something like nuclear power, which will be forever associated with bombing. But you know, fats can't really think, so it's no wonder their analogies get a bit skewed.