No, because no matter how badly some want to paint every bit of damage in 2020 on liberals, you can't. The evidence isn't there. Take that for what it's worth.
The big issue with those numbers is that they include the fatalities from 9/11. Remove those, and right wing violence dwarfs left wing violence.
I agree that the numbers of youth, especially those identifying as democrats, supportive of political violence is alarming. As I've pointed out in other posts, though, these kids have gone through stuff in their lives you and I never had to deal with. Those kids are seeing their futures evaporate and they're pissed.