Palestinian Marxists and fascists advocated starting forest fires in the US a long time ago, as far back as the 1970’s if I recall correctly.
While I don’t have a copy of “The Anarchist’s Cookbook”, I’ve read a little from it as well as other Marxist terrorists manuals including the Mayday Manual and Carlos Mariguello’s “Manual” on urban guerrilla warfare.
Arson has always had a tactical place in their operations, if only to draw firemen to a blaze and then shoot them.
The problem today is that we don’t shoot arsonists. Period. Take out about a dozen all over the country, with some of them wounded and being burned alive by their own devices, and arson will become less a weapon of choice.
The only way to fight “fire” is with “return fire”, bigger, better and more accurate.