I raise that because you did cite section 13, but section 320.1 is an interesting section of the Criminal Code, one that, for whatever reason, has been completely underutilized. It provides a judge with the authority, on reasonable grounds, to order the removal of something on a computer system that constitutes hate propaganda.
Intent isn't required. All that is required is that, on reasonable grounds, a judge is satisfied that it constitutes hate propaganda. Would that not be a tool that's already there that has been overlooked or underutilized?