“if we enjoy the fireworks, surely we are also relishing precisely what Fawkes wished for?”
Surely not. Who wrote this? Not all explosions are like fireworks, firstly. More importantly, Fawkes wanted to kill people and destroy property, not merely make an explosion.
I agree with you, Tublecane. Also, the bonfires in early November (and also the costumes, and burning of a scarecrow)were a repackaging of a folkloric ritual - the fires of Samhain, which marked the start of winter. Halloween, in the USA. Those people had enjoyed bonfire festivities long before Guy Fawkes.
But it is a pity that Bonfire Night was taken over and redefined as a festival of anti-Catholic propaganda.