More to the point, how many have antifa directly killed? Zero. How many have they beaten so badly that they were left in the hospital with broken bones and/or destroyed internal organs? Zero. Can the same be said for the neo-nazis? No. The KKK? No. The Confederate flag waving "white nationalists?" No. 
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Blocking streets is not violence. Not even if somebody gets injured in the resulting traffic jam. Shouting down a speaker is not violence (although it comes closer, depending on what is shouted). Nor is blocking access to a venue. Those may be many things - some illegal, even - but they are not violence. Those promoting the false equivalence narrative can't do so without trying to redefine the terms.