We are talking about very narrow question - is Biden's strategy about ruining Russian economy effective?
And the answer is simple - No, it isn't.
There is no starvation. Food is not expensive. Inflation is pretty low. Unemployment is almost zero. Industrial production is high. Foreign trading has changed its structure, but increased its natural volume. In that regime Russia can fight for decades, eradicating Ukrainians, Poles, Germans, Romanians, Brits and whoever else. Therefore, the USA have to change its strategy, because the USA do not have decades for all this sh-t.