Taking a comic from the Leftist Daily Kos doesn't support your claim, but perhaps a piece from the Washington Post will refute it.
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https://www.washingtonpost.com/opinions/yes-antifa-is-the-moral-equivalent-of-neo-nazis/2017/08/30/9a13b2f6-8d00-11e7-91d5-ab4e4bb76a3a_story.html?utm_term=.bda952c7c257#comments

To clarify your sentence: there is one "side" of bigotry, and it comes in all shapes and sizes.  The President is right, and he's not "supporting the KKK" for saying that.