You say this like Russia did not deliberately attack Ukrainian civil infrastructure in the last 6 months of war before September.
Dude, he knows what Gazans (Or strictly Palestinian) felt like probably since day 1 of war. And just because he is jewish that does not mean he agree with what Israeli did.
After this war, if that question is posed to him, he would agree with Israeli tactics under the guise that "they are protecting their territorial integrity from terrorists." We've seen that drama before.
But that's another topic; screw his religion, and let's watch the war.