If you’re a fan of the idea, you’re either a nazi or really really ignorant/naive/misinformed.
So I’ll assume the latter and try to briefly explain to you why it’s so bad: people bad, authoritarianism inevitable, results in ‘oops you’re not “human” because you lack/have X, you must die’
Humanity, just like nature, thrives with diversity. Eugenics starts with “getting rid of nasty diseases” but it’s always 1 bad classification of “disease” away from genocide.
Safari, until apple’s stance on privacy worsens.