Facebook is to leftists what Grindr is to homosexuals. It's a platform designed by that crowd for that crowd.

it is just convenient timing. and it is staying just south of the canada border.

Its a good thing Facebook knows everything. What would we do without them?

I doubt antifa is organizing or committing the arson (California is their political stronghold, they wouldn't benefit from it), but I would not be surprised if foreign agents or subversives were behind it.