Hey guys,
So I am stilll sort of a newbie, but have made some leaps. As a former pretty active "apologist" (ahem), let me say, that the ol "why are you even here" thing, is a dead end.
Pointing out o them that they are doing something "wrong" only tells them you would prefer they not be there, because they are exposing you!
I know that seems backwards, but it doesn't do any good at all. Some will remin apologists, some will end up questioning things as I have. i would rather encourage them unemotionally to discuss what they don't agree with, with you. It might get somewhere. If you feel like pointing out they shouldn't be there, then do so passive aggresively if you get my drift.
Just my 2 cents since I have been in their position, (although I do like to think I was more eloquent).