[Z]

I think it's actually the opposite... people who use social media to express nasty views already had those views, or perhaps their views have become more extreme because of what they do online - but the thing is, because they're expressing them online, they're identifying themselves as being -phobic/-ist people and often can be prosecuted for inciting hatred. Even twenty years ago, ten years ago, that was never a possibility, so I think that in spite of how amplified all the craziness seems; in reality it's helping to expose these people.