Yes, that is called eugenics, and it is generally frowned upon.

Also, how do you propose we would do that? I feel like from the past few years we should all know that this is not only not a trivial matter, but also basically impossible. We couldn't even get people to take a disease that was killing thousand s of people every day in front of them and majorly disrupted their lives seriously. How do you think people would treat a disease that doesn't affect them in basically any way? What's more, we couldn't even get people to take very simple measures to pyevent it, how do you think everyone would react to what you're proposing?