It used to be respected science, but now it isn’t anymore because of how it was used to try and eradicate people of racial minorities as well as people who were considered mentally ill.

Eventually though people realized that it’s not great and actually quite dystopian to allow for people to be murdered for being mentally ill (some places actually did kill people) or trying to prevent people from reproducing. Hence why it is no longer respected in most countries and for good reason, it is fucking evil.