Everything else, as BB rightly says, is secondary.
Ukraine had not the resources to fight us in a protracted conflict.
In addition to what I wrote above:
Just a few weeks ago, the EU authorized a further $90B facility to keep Ukraine in the war longer. This pays the salaries of state employees, pays for state procurement, pensions, etc.
You export electricity to them, to negate the effects of us disabling their power plants.
You provide avenues for their export - to negate the effects of Mariupol, Berdyansk, Nikolayev, and Odessa not being able to act as traditional conduits for their exports through the Black Sea and on to the Mediterranean.
You let them import anthracite coal and coke - to allow their metallurgical factories to continue working and earning them hard currency.
Ukraine would have collapsed in the first year of the war - if your governments minded their business and did not interfere.
A Ukrainian state collapse would have saved hundreds of thousands of lives.