He isn't castigated, because he's black.
He stands accused of many crimes, but the crime that makes it difficult for the British government to deal with is it racism towards whites.
It isn't just whites, of course, it's anyone who disagrees with him, but he has purged the country of whites, and we are not ready to deal with white racism.
It is, in MN terms, a thread killer. He is a dictator in the same way that Hitler was. The difference is that we don't have a politician of any stature who will stand against him.
My opinion? The raw result of political correctness. He is Black, so he can do no wrong. He can murder millions of blacks, but it's nothing to do with us, because we're white.
All the white, middle class exponents of Political Correctness have got much to answer for. You're no different to the Nazi apologists from the 1930s. You make this happen.