Antifa isn't a group they are just a right-wing strawman.
In fact, you appear to be attempting to disprove him in his own words, since he claimed to be "100% ANTIFA", again on Facebook. [2]
[1] https://www.washingtonpost.com/national-security/michael-for...
[2] https://www.cbsnews.com/news/michael-reinoehl-suspect-portla...