Ukraine wanted Europe and US to get more involved in war against Russia. Russia is not going to use nuke in Ukraine but if Europe and US got involved, there would be chances of the war going nuclear and even if it didn't there could be more countries joining the Russian. Which could lead to a world war.
While US aided bombing or Iran with the help of Israel as proxy comes when Iran is at its lowest. There's no country that would stand in favor of Iran as all of them knows Iran making a nuclear bomb would be devastating for the reason and the whole world.
In short, attacking Russia might start a world war but a even complete genocide of Iran won't.
It's not a good thing but its always the strongest that bullies and gets everything. The weakling either die fighting or be slaves to the bullies.
One thing is now getting clear that Iran without nuclear weapon, without strong air force and without the support of Russia/China is still superior to Israel. Now Israel only chances of surviving this conflict is to US jump into this conflict otherwise Israel will face a humiliating defeat.
For Ukarine it's a set back because USA attention is diverted towards middle east and has taken measures that are not liked by Ukarine like
redirecting 20,000 missiles (anti-drone) for Ukraine to the Middle East . Ukraine was once a close ally of US but is now being ignored by USA.
Between Tantura 2022, is a lovely documentary and its enough to open the eyes of people who thinks Israel is innocent!