This is all possible.
But the elephant in the room is that Richard Spencer - the man who coined the phrase alt-right initially - set the event up with this Kessler.
So, for this to be true, Spencer has to be a dupe of the highest order or has been living a public lie for ten years.
An extremely dangerous public lie, I might add, since a lot of people would cheer if he took a bullet at one of these events.
You’re right, those are all good points.
It is a matter of puhlic record in Canada that a neo-Nazi group known as the Heritage Front was organized in the 1990s by an agent of the federal government and that this was done to keep an eye on actual neo-Nazis. It was also observed that having some convenient swastika wavers available for show might play into certain government objectives from time to time (oh look at all these dangerous Nazis, best we keep the internet under very strict surveillance).
Also having the government guy in charge would limit the actual accomplishments of the group, his job was to appear competent enough to lead, but not so competent that the cause ever gained much momentum. Mind you, trying to organize a Nazi party in Canada is about as stupid an idea as there could possibly be. Organizing a communist party is much more sensible, and this is probably why we have five or six. Some actually use the name communist.