Truth is, there are very few Antifa people period. Its a paid for illusion, built on a handful of anarchist commie slackers that refuse to grow up and get a life.
True - that there are not that many of them, but their numbers are growing (I believe) and will do so as groups like this grow, organize and become more visible.
And it only takes a few hundred of them to cause a hell of a lot of trouble.