I absolutely know that. I have witnessed my Coptic friends experiencing extreme intimidation and harassment from such people, and Copts are neither Arab nor Muslim (also the Lebanese in that picture are Greek Orthodox Christians, not Muslims). My point was that Arabic is a language, and Arab is an ethnicity, not a race. There are millions of Arabic speakers who very consciously do not identify as Arab, and yet may look like what a person from another ethnic background thinks an Arab looks like, so they are treated the same despite not being Arab (or Muslim, in some cases). That's precisely the point of pointing out that "Arabic", "Arab", etc. are what they are -- because the reason why people can paint with such a broad brush is this kind of lack of intellectual curiosity or willingness to make these distinctions between the people, their language (which was in many cases forced on them at some point in history), and the dominant religion of a given area. I'd rather be pedantic than erase the identities of millions of indigenous ethnic and religious minorities by lumping them in with the people who hate, oppress, and kill them just because they successfully forced their language, culture, and religion on the societies they conquered.