You may not be claiming there is snake venom in the water, but the dude in the video was, and I’ve had to talk a few people out of believing it. They must have missed the debunking, which is what happens.
I doubt they could secretly introduce a dangerous substance into drinking water nation wide, but DS with politicians and media assistance could convince water providers to add something for “the health of the community” - like flouride, as happened with vaccinations...
Did I not hear him correctly?