Technically, yes, but look what happened to Kennedy for merely trying to pump the brakes on Vietnam. They shot him in front of his family and the public.

Way oversimplified, but the rich and powerful people you’re suggesting going after have deep pockets and a lot of resources. Trump didn’t just get elected because people hate brown people and the gays. He’s not the Klan’s man (he is but not exclusively or primarily), he’s the rich man’s man.