Hitler essentially bankrupted Germany developing the armed forces he did. Now it's proposed they develop a much more expensive force?
And nobody is watching while they do this?
It's not at all clear to me by the way that Me-262s would have allowed the Germans to win the BOB. I've seen it calculated that they would have had a difficult time keeping a force of even 100 of them flying for any length of time and operational losses over Britain would not have been insignificant not to mention losses from British fighters catching them limping home on one engine.