> them losing and that result being recognized implies that warmongering is acceptable

You do realise that the US has more or less constently been at war for the past fifty years. "The west" - whatever that means - can't take a stand against warmongering when they are themselves warmongering all the time. War and the threat of force is part of diplomacy like it or not.

Support to Ukraine is a part of global geo-strategical calculus of which taking a stand against tyranny and defending the sanctity of borders is but a minor part of.