In my view, I don't think it was aimed soIely at communism. Can't speak for the intent of the poster unless they weigh in though. My view when saying they wanted to test something and then say several groups were horrible was to get a reaction from those that belong to said groups as a sort of half assed shotgun technique. I really didn't expect it to get a rise out of anyone reasonable which is why I made my initial comment. All of those groups listed have various sized vocal subgroups that will aggressively defend their view points with a "them vs us" take.

That said the view points themselves are very different so that is where the equivalence stops.