Picassoist eye of the beholder

We are told that Baroness Thatcher cannot have a statue to her set up in a public place. The looney left will vandalize it because she's ‘controversial’. But Nelson Mandela can have any number of statues because he isn’t.
    Well, yes, there’s no controversy over the fact that he was a communist terrorist who spent three decades in gaol. He was and he did. But then, Baroness Thatcher managed to become the leader of her country without breaking the law. Which, it would seem, is a cardinal sin in the eyes of the looney left.