[smsm42]

As I said, as a personal preference, it's personal business. If it's advocated as a societal norm, the government will inevitably come in, if not as direct coercion, then as softer means - subsidies, preferences, financial incentives, propaganda, etc. That's how it has always worked - maybe in theory the government shouldn't be in the business of enforcing societal norms, but it very much is in practice.

[Trundle]

There are already personal preferences in partners that are so common that they're basically norms. I don't see a world where people take longevity of a potential partners health in to consideration on top of height, face, class, etc; and the government decides to get involved, to be all that much worse than the one where people just take height, face, class, etc in to consideration and the government decides to get involved.

To me an appropriate analogy would be if burkas were the norm for everyone, some guy was all "I wish we could easily see peoples faces when trying to date. I have a really attractive face and I'd like a partner with the same", then someone was all "the government will get involved!"

How and why? Prevent uglies from dating hotties? The market already does a decent job of that.

There's no department for "dating profile height fraud".

No one cries "eugenics!" at being able to see how attractive your partner is.

[smsm42]

No one needs to cry anything - the OP admitted he's into eugenics. He just thinks it's completely logical and natural thing - after all, don't we want to better the human race?