I wonder why

The US isn't in a war with hundreds of thousands of casualties, the entire economy re-geared to produce wartime materials, huge needs to on-shore production as foreign partners cut ties, oil and ammo depots exploding all over the country cutting the two major sources of export revenue, central bank interest rates at 19% putting even the safest of loans at credit-card levels of interest, demographic decline that makes Europe's problems look downright peachy, and persistent double-digit inflation wiping out the real value of everyone's savings and making it even harder to afford imports.

In short, the US has a healthy economy and Russia has a wartime economy that is doing it's best to win the war before an economic collapse.