It the current case, it’s giving Ukraine enough to hang on, but not enough to do real damage to Russia.
In the other current case, helping Israel shoot down rockets and drones (which the US will not do for Ukraine) to render an Iranian attack ineffective, then making sure the Israelis don’t launch more than a pinprick in retaliation.
Throwing Proles under the bus, was USian policy when Kissenger had influence. Didn’t matter how many thousands of dissidents were snatched, tortured, and killed by the Argentine junta, as long as the junta paid lip service to being “good anti-communists”. The US was in the vanguard when Saddam had the bad form to invade Kuwait and disrupt the US’ oil supply, but did the US send a carrier group to the Falklands to give the Brits some air cover when the Argentine junta invaded? Nope.
Yep. Giving Ukraine more weapons upfront would likely mean less need for weapons overall. This policy of thinking about it for while before giving them the good stuff in not the right one, in my view.