You just did it again -- having to go back 50-150 years to find enough violence from the KKK to equate with or surpass what we've seen from BLM, Antifa, etc.  

Bad as the KKK is, they've been tiny for the last 50 years or so.  And for the time period that BLM and Antifa have existed (basically this decade), we've seen far more violence from them than we have the KKK. 

That doesn't mean the KKK is good at all.  It just means for the same timeframe, the other have been even worse in terms of violence.