Responding to your edit. Edit: You keep making your post longer and I'm not going to read your additional edits.

> In terms of rational or irrational, it's irrational to fight wars that destabilize the world and that you cannot win.

The US is not fighting the war. Ukraine is. Additionally, it is Russia that had no way to win this war. There would be a forever insurgency had Russia succeeded as they didn't have enough troops to maintain the peace, assuming they hadn't lost any.

> It doesn't matter that you really want to win. It doesn't matter if you think you should win. That's the difference between acting emotionally versus acting rationally.

I agree. There was little chance for Russia to win this war and so they shouldn't have started it.

> The US has attacked or invaded over 120 nations since 1991

You got a source on that? That's a pretty outrageous claim.

> For example, we destabilized Afghanistan by sponsoring Islamic terror there, incentivizing the Soviets to invade.

You reversed cause and effect here. The former happened after the latter. Soviets invaded and then we supported the Islamic rebels to successfully win out against the Soviets. If we hadn't history would have taken a very different course. And as usual, one man's freedom fighter is another man's terrorist.

And none of that is relevant to Ukraine. Supporting the democratically elected government against an invading imperialist power.

> The result was the radicalization and destruction of Afghan society

Afghan society was based on tribal warfare, and is still based on tribal warfare. Nothing was changed. I've even heard anecdotes from some of those tribesmen who thought it was still the soviets invading when Americans showed up.

> So this was irrational, even though it felt good to give the Soviets an L at the expense of destroying Afghan society.

You think the Soviets would have preserved Afghan society had they taken the place over and integrated it into the Soviet Union? Just as minorities suffered in Russia, they continue to suffer to this day. They are second class citizens with their culture slowly being erased.

And again, supporting Ukraine in fending off an invading empire does not "destroy their society", it preserves it.

Edit: One last reply as you added some nonsense to your post at the end.

> We engineered two violent color revolutions in Ukraine to install anti-Russian governments and urged Ukraine to not negotiate and not implement the Minsk 2 agreement, and now we are pumping it full of weapons so that they will fight until the last Ukrainian.

Yeah this is pure lies. There was no US engineering of the revolution in Ukraine. It was entirely done by themselves. This type of propaganda you have fallen for is the problem with the nonsense put out by responsible statecraft. They repeat Russian imperialist state-written lies.

Secondly, it is the actually the west (mostly Europe) who instead pushed Ukraine into Minsk 2. It is something that Ukrainians hate more than anything and why they push back against any US politician or European politican who says that something else like that is created. https://twitter.com/christopherjm/status/1592427657601650689 Zelensky hates the Minsk agreements and has vowed that he will never allow a "Minsk 3".