I am not advocating attacks on civilians, not only is it immoral it is a waste of ammunition that does nothing to advance strategic goals.

The movers and shakers driving this war have sat out long enough.

Bring the war home for them. Start hitting military targets in and around Moscow. Specifically, air defenses and others that will cause Moscow to pull resources from Ukraine to defend Moscow

Their yes men will not be able to deny a constant barrage of explosions around them and Putin will have to placate them by reassuring them with visible military resources