You didn't respond to the topics in the post, but jumped straight to speculation about the person who said it. That means you probably disagree but can't counter what was said. You are trying to hide that by changing the focus from the topic to the author. In a honest debate, you just lost an argument.
The kind of remarks you made about body-shapes are conceptually related to something called somatic theory of politics. Where people are grouped in 3 groups: mesomorph, endomorph and ectomorph. It's a defunct political model that failed to make correct predictions, but for some reason many people are still getting enthralled by it.
People have political views based on materiel interests. Sometimes their perception of material interests are skewed by false consciousness. That's it. If you don't have that in the foundation of your political model, it won't work.
I'll give you some good advice, don't bother with bio-politics: You suck at the guesswork, but also bio-politics is retarded. Keep in mind that i do understand the linguistic associations you are making with body types. If you read descent books by clever writers who are excellent at character creation, you can pick up the patterns. Anybody who reads good fiction, knows how to fool you.
Anyway, feel free to talk about democracy and plagues now.
The true alpha-chad move to deal with plagues isn't to catch it and hope for a good immune response. That's cowering in a trench hoping the artillery spread doesn't flatten you. The best strategy is to get to the microbes before they reach you. That means inventing efficient and cost effective air-purification. And then making it absolutely ubiquitous. Making it a physical barrier, the microbes can't evolve a bypass to.
Lets also touch on democracy again. If your society reaches a sufficient level of democracy, it'll become a well organized society that isn't being robbed by a ruling class. Hence it won't have a need for dealing out a short stick or making somebody the scape-goat. If your society generates the good life for the majority, the obsession for being a minority will go away.