its a mere product of the lack of quality scientific education in capitalist countries, as are most conspiracy theories. nobody understands what a vapor trail is, so it must be planes releasing a mind-control gas into the atmosphere or something.

these conspiracy theories are often woven together under larger unifying ones (new world order, Qanon/deepstate, etc), and this one is part of the NWO thing where the chemtrails are allegedly part of the effort to drug humanity into submission, along with like fluoride toothpaste and aspartame and vaccines. again, it's all just severe lack of scientific literacy, usually because of substandard capitalist education in the united states and europe. even if the theory were to be true, dispersing gas into the atmosphere via plane trails is an incredibly inefficient way of doing so i think.

I had someone telling me it was a mind-control chemical they were spraying to pacify the people once. That's about the closest I've ever come to talking to anyone that took this theory seriously.

To be fair to them, all conspiracy theories have a grain of truth. Here in the US the government has tested biological and chemical weapons on civilians. Polluting factories and stuff also poison regular (non-white) people. They’ve tested nuclear weapons near people without their knowledge. MKULTRA and the Tuskegee experiment existed. The sad part is that the mainstream conspiracy theories distract from class consciousness. We know about this stuff, but we have a better framework than “da joos.” It’s funny that culture wars and conspiracy theories are themselves conspiracies. I’ve heard if you tell conspiracy theorists to do their own research on that then they may be de-radicalized.

It's the most widely accepted conspiracy theory I've seen

They don't even need a conspiracy theory to hate the trails The planes have massive carbon emissions.