Don't burn tobacco; burn Jews!

Before reading this Wikipedia page I had no idea that Hitler hated anything more than minorities. It is also nice to see that not only did Hitler carry out one of the worst genocides in history, but he managed to turn smoking into a taboo based on discriminatory views on women, using the argument that "Women who smoked were considered to be vulnerable to premature aging and loss of physical attractiveness; they were viewed as unsuitable to be wives and mothers in a German family." I hate it when evil people get some things right (the non-smoking thing, not the sexism thing).

Hitler was evil, but had this one good campaign (I know that one could argue that the reconstruction of a German identity was a good thing, but for the sake of a comedic argument let's assume this was his only good campaign). Who best epitomizes the reverse of this? That is, which good person in a very public position has openly endorsed, supported, and/or led a campaign based on ignorant hatred? I am struggling to come up with a decent example of the type of person about which I am thinking. Any thoughts?