I don't think sectarianism necessarily has its roots in cultural Marxism. Long before Marx was born, the most vicious sectarian campaign imaginable was implemented by Protestants against Catholics in these islands. This is not to say that cultural Marxists aren't opportunistically exploiting the situation. However, we all remember Cromwell; the Penal Laws; the suppression of primogeniture among Catholics, almost inevitably leading to famine; Mass rocks; hedge schools and so on. This seems a fine initiative, but there is some responsibility that can't simply be deflected to contemporary bogey-men.