Nick has pointed me to the site of an organization called "Historians Behind Bars", aiming to decriminalize the Holocaust denial. I fully and unequivocally support such a decriminalization, so my beef is not with HBB's aim. Rather, the problem is their name.
What "historians" are behind bars?
None of the deniers currently imprisoned is a historian - certainly not Rudolf, Zuendel or Verbeke. Irving used to be a historian. He no longer is. At some point he became a liar and a fraud (as has been established during the Irving v. Lipstadt trial), which is incompatible with being a historian.
Even if one has an opinion that Irving is still a historian, then the organization should have been named "A historian and several wackos behind the bars".
So what does this organization, which starts off with a lie, hopes to achieve, really?