While making products toxic is something vile by itself we have reached a point where the ruling groups are literally trying to weaken and genocide the population as part of a fanatic religious plot. In a more ideal society, people shouldn't even have to fear this at all and products should be regulated so they meet the proper standards for consumption.
One of the weak points that libertarian systems have is how they can be exploited to become corrupt oligarchies.
there doesn't seem to be anything here