OK. Let me get in here because I am from Lewes in the south of england which is a small town quite near brighton. We have possibly the largest bonfire night celebrations in the world relative to our size and our towns population more than triples on bonfire night.
We celebrate it because we, historically speaking, are a very protestant town and of course bonfire night is specifically about the plot by catholics, Guy Fawkes e.t.c., to blow up our government and king. However as you who know history will be aware there was a lot of "toing and froing" between a national catholic religion and a national protestant religion during the Tudor period. During this time it switched between protestants and catholics being oppressed and punished for their religion. During one period of protestant oppression, in Lewes there were twenty protestants burnt at the stake for their beliefs and we celebrate these protestant martyrs in lewes and of course celebrate the death of catholics, Guy Fawkes, and we call for the Pope to be burnt.
Now I know what you're thinking, "steady on daveman, that can't be true in this politically correct present day we live in." However I assure you it is. Of course it is just as most holidays are nowadays, all the fun of the celebration without any of the thought behind it, i.e. nobody really wants to kill the pope. In fact it is much more a celebration of the power of the people as everyone takes over the streets and parades with flaming torches.
Any way, if you want to know more do feel free to look us up.
P.S. I would like to say I do not want any catholics dead. I promise.