Trump is a factor that's creating an extreme reaction, but it's also the media's portrayal and hyperbole regarding Trump that is adding to radicalization. Trump isn't exactly far-right, but the left utilizes him as a symbol of far-right extremism. Mostly due to Trump's unapologetic stance to PC culture. It's not like the far-right is noticeably more active than it was during Bush or Obama. There's more of a difference between Bush and Obama than Obama and Trump as far as far-right extremism. And sure, opinion polls indicate that people feel it's gotten worse, but the statistics just don't jive with opinions.
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