No, it doesn't. The left is not a racist, hateful group and they do not coordinate and perform mass shootings. This particular problem is not shared equally by both sides.
You fail to recognize that the "left" is as wide and disconnected as the "right", and they both host dangerous and despicable morons.
You should look into the beatings of the Marines going to a dance by members of Antifa. The Antifa assailants said vile, racist things to their non-white victim.
they do not coordinate and perform mass shootings. This particular problem is not shared equally by both sides.
There are calls for arming on the Far Left, and documented cases of their acquiring and training with weapons, while planning for conflict. The Dayton shooter thought of himself as Antifa.
As far as Antifa assault involving ethnic intimidation goes: https://www.washingtonexaminer.com/news/alleged-antifa-membe...
It's hard to know the context. The last time I remember I was asked for a citation, I found the Washington Post article I was going to refer to was paywalled. It's now available to me again.
https://www.washingtonpost.com/national/in-the-united-states...
Most likely the specific observation you're referencing was that in the last 2 years of the chart (2016, 2017), if you go down to the bar charts for left wing and right wing violence, you'll see that there are 11 incidents of right wing violence for that period and 17 incidents for left wing violence.
More generally, in terms of incidents like vandalism, threats, and assault, there are lists going into several 100's of incidents for the past several years for the far left. If you want to find them and analyze them, that sounds worthwhile. There were tons and tons of such incidents on YouTube, seemingly endless. However YouTube seems to engage in suppression of videos that go against certain political agendas.