I have no idea why you are getting downvoted, as there is a lot of good evidence supporting your position. The book "Active Measures: The Secret History of Disinformation and Political Warfare" by Thomas Rid spends a great deal of time talking about this. I think the evidence so far shows that the power station attacks are likely linked to loosely affiliated white supremacist groups. It is unknown if Russia is funding them, but if you recall, Russia was linked to several secessionist groups in the US, with the head of the California group eventually moving to Russia.

https://www.kqed.org/news/11217187/from-his-home-in-russia-c...

https://www.npr.org/2018/04/25/586099619/the-russia-investig...