To add to this, the ecosystem around this is what really enables their commentary to spread into threads with only the slightest relation to their hot topics(immigration, black people, islam, etc). There's a variety of IRC channels, Discord servers and other sites(4chan, gab, twitter) that are participating and orchestrating their activities on Reddit. I think that's the larger effect the above person describes.

Even though they are generally heavily downvoted, I worry that their one-liner soundbites and gotchas will reach more people with weaker critical thinking skills.