The people of Ukraine have told the world what their best interest is: removing Russian soldiers from their land, by force if necessary.
The US is only interested in Ukraine when their goals align. Everyone knows this, including most Americans and most Ukrainians.
However, it turns out that US and Ukrainian goals do, in fact, align. The US isn’t “using” Ukraine any more than Ukraine is “using” the US. They are openly cooperating to achieve a common interest.
Tankies can always be counted on to project the worst in themselves.
There are hundreds of thousands of Russians in Georgia and Kazakhstan who can explain which side is kidnapping young men off the street and sending them to die for a war they care nothing about. Meanwhile, opinion polls of Ukrainians consistently show that an overwhelming majority want to continue the war until Russians are defeated.