History is about evidence, not belief. Evidence needs to be presented in a scholarly, erudite fashion so that others can readily assess its merits. Everyone has the right to question a historian's conclusions and, if their own conclusions differ, then they should present their evidence and conclusions in an equally calm, reasoned and erudite manner. A good historian will consider these arguments and, if the arguments are sound, re-assess their position. Those who choose character-assassination – or attempted character-assassination – rather than reasoned historical debate are communicating loudly and clearly that they have no evidence whatsoever to back up their claims.