One of the common epithets hurled at those exercising Jewish rights to visit the Temple Mount is that of "extremist." For the Arabs to use that language is understandable, however, even the UN has taken to doing so. Without going too deep into the UN's designation of Jews visiting their own holy sites as "extremists," it is worth reflecting on the history of making such designations.
In this country there is a history of calling anyone promoting unpopular rights an "extremist." One notable example is Martin Luther King Jr., who wrote in his Letter from a Birmingham Jail, "At first I was rather disappointed that fellow clergyman would see my nonviolent efforts as those of an extremist."
What the example of King shows is that branding someone an "extremist" does not necessarily mean anything about the target of the branding. Rather, it can simply mean that the person doing the branding, due to extreme bigotry, viscerally opposes the target's goals. In the meantime, we should start to compare those who, like the UN Special Coordinator, call Jewish visitors to the Temple Mount "extremists" to the bigots who labelled King an "extremist."