Wars are just not fought that way, and to think that somehow ukraine has the ability to create a safe maintenance infrastructure in mid war is ridiculous. They can't even do that with leopard tanks. They have to haul this stuff back to germany/poland for repair.
Didn't say that. I think it's reasonable to assume that the military with the most experience in these weapons systems know what they're doing. They don't even have capable runways for F16s yet
I think what you're suggesting is that we should go to WAR WITH RUSSIA so that it's a lot easier to repair F16s with more direct NATO equipment and infrastructure
Hauling back to Poland or Germany is simply more convenient : Russia can't bomb those countries, and they already have the people to fix the tanks there.