I agree with you that an individual should be representative only of him or herself, and that that is how I try to view people, but that's not how a lot of people do. An example within this thread is people saying such things like "Hollywood sucks." As much as it sucks, one person's deeds have an effect on how other people view anyone that appears associated with that person. I can think of a lot of examples of how the way one person is viewed effects how another is viewed (good cop/bad cop, how hollywood is suddenly crumbling and kicking out a bunch of actors that have allegations against them, the people that were kneeling during the national anthem, republicans, democrats, any group really) That initial impression bears a lot on how one views the remaining cast, it starts to shed light on more problems, or people are wrongly accused of certain actions or thought processes (a form of projecting).
How one views another is a fairly complex thing, and for those with no connection to anyone with either of those fetishes, I can easily see how one might monstrify the rest of the crowd.
The truth of the matter is one always represents those around him/her as well. This guy might not be associated with us directly (or maybe he is), and the impact may not be direct or obvious, but I'm certain it will have one.
I do absolutely agree though that the method should not be the key objective here, but rather the target.