Association fallacy
I see this fallacy used all the time in arguments on the internet.
The association fallacy means this: "In your group, X person does/believes Y. Therefore, your group does/believes Y."
Example: "One person in the Republican party discriminates based on race. Therefore, all Republicans discriminate based on race."
The fallacy seems obvious, but some people actually commit it. It actually happens quite frequently. I see the fallacy occur often in debates where the two sides begin to refer to the opposition as "they" or "the opposition." The other side of the debate seems to become this singular hivemind mass, rather than a collection of unique individuals with varying beliefs.
So what happens in practice, when this fallacy occurs, is one supporter of one side in a debate says something. The other side of the debate jumps on this and says "hey, look, guys, now they think/do/believe X!"
I see this happen over and over.
I would say that, at best, being associated with someone or something makes it slightly more probable that you may also do/believe something, but that is far from saying that you positively do do/believe something.












