Guilt by association
Guilt by association, also known as the bad company fallacy or the company that you keep fallacy, is the logical fallacy of claiming that something must be false because of the people or organisations who support it.
Examples:
- Atheism must be wrong, because Karl Marx and Stalin were atheists, and just look at them.
- Anne: "Wow - that's a great word-processor". Bill: "Yes it's Microsoft Word". Anne: "Well there must be something wrong with it then, because Microsoft use unfair business practices"
- Anne: "I think that there should be heavier penalties for drug-dealers". Bill: "really, that's a BNP policy! You don't want to support those racists do you!"
Guild by association is a special case of red herring.
See also: honor by association.
