The fact that "peaceful people" from russia always write back that "it's all putin and we're innocent so shut up" instead of being sorry for their country, their fellow citizens voluntarily joining army, their government supported by the majority or votes, and missiles built with their taxes - proves that they're on one side with kremlin and approve their genocidal war.
Germans have accepted the common guilt for WW2 and repented, that's how they healed from nazism. But each time you point to "simple innocent russians" (trademark) about the war crimes and ethnical cleansing, they go offended, they cry "we're not interested in politics" or "it's all putin/NATO." What none of them does is feeling any empathy or sorry to the people their country is slaughtering. Because they're fine with it. The only thing that deeply concerns them is some dude on internet being "russophobic" by saying "russian warship go fuck yourself" (note it is related solely to the war, it doesn't say "fuck all russians.") If they don't associate themselves with war and putin's army, why be offended by it?
If you continue the discussion it'll get to them stating that it's all Ukrainian fault, they just don't like Ukrainians, that historically Ukraine is russia and blah-blah-blah. The fact that any random "simple peaceful russian" on internet immediately goes repeating exactly the same propaganda, stating that in the end Ukraine deserved it, America provoked it, and don't you dare to even say anything about russia, clearly demonstrates that all russian people are fully involved and support the war.
And remember they don't even have mobilization going on - all two million army who invaded Ukraine, who execute pows, who strike civil houses with missiles, who build these very missiles, who spread propaganda, who tortured and raped civilians on camera, who cleansed all pro Ukrainian population of Bucha, who turned dozens of peaceful cities into ashes - they all joined the army voluntarily to do it. The support for war in russia never fell under 50%.