Iron Dome is really cool. Hewever Israel don't have a war on tgeir territory.
Russia's invasion force doesn't really present many targets for a fighter jet.
I can be wrong, as Im not a.military person. But here I disagree. Military jets are an opportunity to hit long-range targets and many.
They are, but in the current theatre of war, Russia isn't presenting any that could be easily hit by a jet but not by something else. What Ukraine needs more than jets is more ability to shoot them down (anything with the words anti-aircraft in its name). Jets would have been great to have BEFORE the invasion, when there were still a large number of airfields from which to launch them.
My military knowledge is about a decade out of date, but that's the way it looks to me.
You are definitely better informed than I am. In any case, I trust our military, which negotiates and asks for weapons. All I have left is hope.