I've got to agree with that one. Whenever someone throws out the apologist label they really do convey a sense that they think the person knows they are wrong, deep down. Like a person offering excuses to defend doing/believing something they know is wrong.
I find the term gets thrown around a lot by the breed of insane conservatives who watch Fox News. I also believe many of them truly think that deep down we all know they are right. It seems to matter to them. I suspect that if they actually allowed themselves to believe some people might disagree with them (rather than simply appearing to disagree because they work for satan) then they would have to consider that they could actually be wrong, and there is no place in their world for doubt.
“Today a young man on acid realized that all matter is merely energy condensed to a slow vibration, that we are all one consciousness experiencing itself subjectively, there is no such thing as death, life is only a dream, and we are the imagination of ourselves.” – Bill Hicks