As a far left person myself I would like to ask one question, did the counter-protesters (the so-called left though I would not classify them as left) have weapons (ex. sticks, pipes, guns); if so Trump was right.  You don't meet violence with violence, you let the far right exhibit the behaviours they are known for, such as intolerance, stupidity  and hatred.   That is enough to have them relegated to the fringe where they belong.  However, the msm as usual makes little to no effort to overcome their tendency to speak only in politically correct terms instead of delving into the issues.  Corporate think.   
Problem with terming too many people as left is that it renders the word meaningless.  Feminists are not left; BLM is not left; etc. 
Also, I have no issue with dismantling these statues of these barbaric men, but again Trump is right, why not Washington (largest land owner at the time and slave owner) and Lincoln (big time slave owner)?   The mushy middle can only handle so much?