Personally, I agree with the US and Germany that full membership should wait until the war is over, but once again, you misrepresent the facts when you say it would be a declaration of war against Russia. If all thirty one members of NATO voted to activate article five, it would mean they would crush Russian forces in Ukraine, not that they would necessarily attack Russia. In a sense, Ukraine's membership in NATO would be the best thing that could happen to Russia since it would end Russia's ambition to extend its empire to the west and since this war has been such a disaster for Russia, that would be a good thing.