I am also hesitant here, but I just read a very respected Gen Deptula who says that we don’t let Russians to decide what is appropriate and that fighter jet are not different from pocket knives, they are “weapon systems”. Even if Ukrainians don’t need more planes right now, they should have them for spare parts and when they need it.
Political angle: US said several days ago that we support Poles doing it on their own, seemingly because they knew that Poles are hesitant to do it. Now, when Poles shifted the risk to NATO/EU, then we are suddenly saying “Ukrainians don’t really need them”.
In truth, the real need is to provide no-fly zones over humanitarian corridors from the cities that are being bombed.