I've been reading about this and agree with this thesis. Even if you ignore the obvious evil, global conspiracies to depopulate... there's still a lot of demographic cliffs. These cliffs really haven't occurred before because up until recently children were considered assets towards prosperity. Now they're only seen as liabilities.
It's all a gigantic "shit test" used to increase the intellect and capabilities of the men that remain. They want men that can pass these tests because it reduces the work they're required to do which is biologically related to the ability to reproduce.
I don't think they used chemtrails. Looks like it was an orally administered test: https://web.archive.org.au/awa/20200921031418mp_/http://www.ogtr.gov.au/internet/ogtr/publishing.nsf/Content/8F93246421910ECBCA257CD1000D2AD1/$File/dir126qa4.pdf
Another example of the inversion. Been noticing this symbol being used more frequently