"One of the key narratives among the supporters and practitioners of complementary and alternative medicine (CAM), particularly those with a conspiratorial world-view, is the claim that vast portions of the US general populous is being deliberately poisoned by certain corporations, special-interest groups, invested individuals, and the US government."
To supporters of Jill Stein and the Green Party, not criticizing unsupported conspiracy theories is one reason why she and it are anti-science.
Deconstructing the Conspiracy of Deliberate Poisoning of US Municipal Water
SCIENCE (from the Latin for 'knowledge') informs wisdom, reason and humanism. This is a 4-legged worldview within reality that maximizes well-being for individuals and society.