Uh what? I don’t think “a few Europeans on discord” is any representative way. Although I think we have a bigger west east decide (sometimes even per country), but in Western (or northern or even southern) Europe that’s definitely more accepted than in the US.

And European representative surveys have shown trump would have lost like 80:20 here.

I don’t see why the concept should be unethical.

In practice, of course it is insanely unethical as the algorithms are designed to maximize view time which leads to algorithmic radicalization and hate spreading more quickly, but the concept of an algorithm knowing and learning what you like and selecting for you itself isn’t unethical.