When I was a youngster, some kids I barely knew and whose names I've long forgotten found that a flamethrower could be constructed with a compressor and a modified paint sprayer - and rather than use some mix of diesel fuel, gasoline with a little Fels naphtha soap mixed in worked well.
As for making a flamethrower out of a fire extinguisher and accidentally using it on a fire . . . isn't that sort of a metaphor for how Democrats want to fix the economy . . . or crime . . . or immigration . . . or any of a number of other issues?