In the same way, I see this phenomenon all over our world. I don't know if it's because of 24-hr news cycle, Twitter/Facebook or whatever, but we see the radical, loud minority dictate the agenda. So even Fry says that it's only a small percentage of trolls that are ruining it for him, but it's enough to drive him off Twitter, despite all of his fans that want him on Twitter.
In other words, the signal-to-noise ratio is very low, but people are now taking the noise as signal and reacting to it. It's not a good thing when trolls and radicals dictate the agenda for the silent, moderate majority. All the noise from the media and anti-Trump haters is a good example of where people who listen too closely to the noise end up missing the signal where it matters, and don't react properly. I think if the Democrats really know how Middle America was feeling, they would have conducted a much different campaign, but they listened to the wrong things.