He made a statement that there were some in the crowd that day that were NOT members of the Aryan Antifa or the Klan or Nazi's. Trump does NOT support those evil groups and that's pretty obvious. Does it upset you that he doesn't?  Seems like it.
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  There were some  people there to simply support the park's statues and memorials,  who were not even Trump supporters. Some could  even have been relatives of Lee, Jackson or Davis. Never thought of that, did you? 
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Trump correctly assumes almost  any crowd contains a few good people, even  though there are thankfully few  in our society who  cannot   see good in anyone, which I think has a lot more to do with that persons own self-image projecting on to others. If you hate yourself and your own 'activities', it does radiate out...