But you are not highlighting that lack of understanding, you are fabricating a new one and highlighting that one. As stated, they don't believe that Antifa is just an abbreviation of anti-fascism, they believe that it's the name of an evil organisation that is branding itself as the abbreviated form of anti fascism.
We should ridicule them for thinking that Antifa is the new Illuminati, not for not knowing that Antifa = anti-fascism because that's not true.