David El Gnomo, in contrasting Eric Bogle's satirical song with Carol's hysterical rant, points up the difference perfectly.
Bogle makes good use of the 'over the top' language of the bigoted for comic effect, without himself being bigoted.
Carol is trying to claim a similar validity for her song.
This doesn't work, because she clearly shares the views expressed in her song - i.e. it is not a satire at all.
The other main difference, of course, is that Bogle's song is well written and funny, whereas Carol's, in my opinion, isn't.
I'm afraid that Carol is not going to listen to any criticism of her song, however well-intentioned, so there I rest my case.