A period isn't heat, snipping tubes doesn't stop a period, and humans are able to decide for themselves. And keeping your dog from breeding without spaying is exactly as "eugenics" as spaying.

> I assume you didn’t notice the months-years-lifetime of depression following?

If there are any long-term effects I will easily bet they're because of hormones, not trauma from the surgery, and if you actually did get the tubes tied then you would avoid hormonal changes.