I don't think the US has the resources to do that. Remember, Russia is not a threat to the US in practice, and now that it's capitalists, it's not an ideological opposition either. It's just another capitalist country they can do business with. The US sees China as the real threat, and in that context Europe is just a distraction and a drain on the resources. That's why the US is negotiating with Russia in the first place right now. They want an off ramp from their failed proxy war.

The original goal was for Ukraine hold out long enough for the west to collapse Russian economy via sanctions, and by cutting Russia out of the world trade. Then the west would've rushed in to plunder the resources, cut China off from energy and food supplies, and then start surrounding it militarily from the west. Today, it's obvious that none of that is going to happen, and Europe lost its value to the US in the process. What the US wants to ensure now is that Europe will be broken and it doesn't form an economic alliance with the east. It's a scorched earth strategy.

Finally, it's worth noting that even if the US tried to do the things you say, China is Russia's main oil importer now. And China absolutely cannot afford to let Russia lose the war for all the reasons stated above. So, if there's going to be an economic war of attrition, it's going to be between the US and China with Europe and Russia being their respective proxies. The US will lose this war because China's productive economy is far superior. China can keep Russia afloat indefinitely, but the US cannot do the same for Europe. And of course, Russia's own economy isn't anything to scoff at either. In terms of industrial capacity it's comparable to the US, and Russia has all the resources it needs domestically. They just have to continue developing their own industry.