My man or woman, you are a communist idiot.
Up through the mid 20th century, all kinds of toxic insecticides were used for all sorts of irresponsible purposes, as their full their effects were not known. DDT was just sprayed into the air in rich and poor neighborhoods.
The world spewed lead-based gas into the atmosphere through the 1960s. Asbestos was considered a miracle chemical.
Using Zyklon B in a gas chamber and using it to disinfect clothes are very different things.
In fact, not but two years ago the US was requiring vaccination with a still experimental vaccine, the long-term effects of which are still unknown, to enter into the country.