The basic objective of almost any war in existence (ignoring the political motives that got the war going to begin with) is to put your enemy into a position where continuing to fight is no longer practical. While killing
by itself is unfortunately a neigh-inevitable piece of the puzzle, killing as many people as possible is not at all a necessary step to achieving that goal (The fall of Imperial Germany, Invasion of Poland, Fall of France, and the American Civil War are examples that spring to mind). In fact, killing everyone in sight for the sake of it tends to be a pretty bad "tactic" to begin with, because it ends up being way too time consuming, an incredible waste of resources, and typically leads to atrocities and increased suffering for the normal people caught in the crosshairs, potentially creating some form of societal breakdown (both the Eastern Front and Pacific Theatre of WWII say hello).
As
@Imari just mentioned, you are so caught up in your bloodlust that you fail to realize (or refuse to realize) that your "kill 'em all" thought process not only makes no sense from a strategic standpoint, but is pretty much Putin's strategy at a basic level, so now you're pretty much just as bad as the guy that you want people to dislike, which also makes it difficult for people to sympathize with you. A good bit of the reason why Ukraine is getting so much support around the world is because, among other factors, they've mostly maintained a strategy of general defense, and aren't taking unnecessary steps to slaughter every Russian solider they come across, and instead are trying to capture as many enemy soldiers as is practical.
I very much want Ukraine to win, and I want to see Putin punished for his actions (whatever those punishments may be), but celebrating the deaths of others, even if they "deserve" it, is a pretty hard sell for me.
Like I said, it was a quick search. I was more looking at what aircraft Poland, Slovakia and Bulgaria had in their current inventory. I can see them going for the Rafale (and maybe some old Typhoons) down the line, provided Ukraine walks away successful.