It sounds like you have some hidden assumptions. To me, it looks like you're casting aspersions on people who advocate progressive social change. But I'm sure that's not your aim, so why not just state outright what you really think and clear up my misunderstanding.
… Which is? What, exactly, is coming to your mind?
Because it looks like you’ve drawn the conclusion that seeking to improve our society in any way is a slippery slope toward eugenics.
And I don’t see how that follows, so I’m giving you the benefit of the doubt to correct my misunderstanding, requesting for you to elaborate on your point.
Also, not everywhere is America. Sweden had a fairly nasty eugenic program, for example.