Regarding the Odessa incident— Any government will of course punish traitors. There is no government in the world that doesn’t punish people trying to revolt. The Russian government has killed and imprisoned lots of Russians for opposing the government for example. This Odessa incident is not a proof of anti-Russian hate, it’s a normal response of any government.
Now you agree that Russia started the war to topple Ukraine and and failed in its purpose. So we agree!
I should also add that I still read Dostoyevsky and respect Tolstoy and other high Russian culture. But killing Ukrainians? I don’t respect that. In fact I believe that if Dostoyevsky and Tolstoy were alive today they would oppose the Russian government of today just like they opposed the Russian government of their time. Both were nearly killed and imprisoned by their own government.