Because its all Moscow has left.
Ukraine is smoking everything they have. There is a very popular video posted online of a 4 million dollar Russian T-90 being blown to bits by a 500 dollar FPV drone. And it was at a full tilt boogey when it was hit, too.
A ragtag army of Ukrainian soldiers is SMOKING the Russians. YEARS into this conflict, they basically have gained NOTHING and lost EVERYTHING in the process. Putin said he could be in Kiev in 2 weeks. He's not anywhere NEAR Kiev in two YEARS.
That's why I think its stupid to deny Ukraine funding. We are basically OBLITERATING Russia's military industrial complex without shedding a drop of American blood to do it. It will take Russia decades to recover from this. This war is worth every penny.