Your claim of what the sanction was for is counter to what the US administration, the US Department of Treasury, and the US Department of State have all explicitly stated. And what all US allies that have also gone in on sanctioning Russia have stated. I’m inclined to believe them over you.

The various US officials are all frustrated because they enacted these sanctions based on the Intel and the forecasts that the Russian GDP would shrink significantly more than it has and that the Russian currency would experience much greater inflation than it has. Russia has unfortunately defied expectations and has been measurably successful in countering what the sanctions have attempted to do.