Ukraine has been dealing with Russian influence and subterfuge in its country on such a scale for centuries that its essentially like a brain parasite, they've had to resort to some extreme measures to try to combat this control, there's no sense in being soft or cautious about it anymore as Russia has launched a full scale war against them and the way their troops and statesmen have behaved, they've essentially declared their intent is to exterminate the very idea of the nation.
so when those are the stakes. Ukraine will do a lot of things that seem weird. changing christmas, forcing themselves to stop speaking russian and speak ukrainian, etc. its total war. this is what happens in total war.
the russian orthodox church is also under the direct control of the kremlin, Patriarch Kirill is a KGB gangster like Putin, he just wears a fancy hat, but most of his preaching about god is usually in relation to killing and fighting. its just a state war church at this point.
Most probably just see the Israel Arab conflict as another wing of the same global war that Ukraine is involved in. to Kyiv, Israel is fighting against an amalgamation of terrorist groups and states that are all allied with the aggressor Russia, and some of them are directley aiding Russia's invasion of Ukraine Iran.
Thus, when you're being sold out and stabbed in the back every day, you have to resort to ruthless pragmatism, you can be Pro Ukraine, and Anti-Israel, but you should also recognize that the side fighting against Israel, is also fighting against Ukraine.