There is no DDoS that's minimally violent. You are right though, not all DDoS attacks are politically motivated.

Whatever, can we say it's a 3/10 or less on the violence scale instead of having an argument about what "minimal" means?

For certain things I will measure/compare harmfulness relative to potential outcomes because sometimes doing enforcement is suboptimal. In this case, however, we're talking about someone co-opting the governments monopoly on violence, which is more of an issue of principle. Once you let people co-opt that, it's a fairly run-away train. That's a long way of saying, for me this situation is very binary. There's no degrees of vigilantism.