If only that were true. Russia is calling Israel precisely because they didn't stay on the sidelines, and there is a lot of ugly factual history to support Lavrov's assertions.
It IS true. Israel has pissed Biden and Blinken off by staying out of it. In fact NeverTrump Republican Rep. Adam Kingizer actually threatened to withhold aid from Israel if they didn't start helping Ukraine with weapons systems.
Adam Kinzinger: U.S. Should Withhold Aid from Israel Unless It Arms Ukraine