Because of course, the greatest philosophical question of our time is why humans aren't as coldly rational as machines
One of the more prominent ones at the moment, I'd say.
and the greatest ethical problem to be solved is how we can fix that.
Fix the fact that we aren't coldly rational? That's not the point - of the problem or of the quote. The point is: can we streamline our consciousness so that people from around the world would yield similar results by default? A very far-fetched question, grant you, and one would argue against such a normalization.