It's completely insane to attribute inflation to Biden. Inflation is pretty much a US interest now, because how else are they going to repay the debt?

COVID mostly caused inflation (and in particular the government's questionable policies), the war in Ukraine caused a higher price of energy as well. I think at least 50 percent of what Biden did were strategically sound choices and even then, the idea that any single person actually makes these decisions is wrong. If a given leader gets a particular advice from his staff, there's not really room to think anything else anymore.

The US should probably have stationed troops in Ukraine, before the invasion. That would have been actual deterrence. Then again, perhaps the US is playing 5D chess and they just want to intentionally weaken Russia and have it fall apart under its own weight. As a citizen without my own intelligence apparatus, it's impossible to say whether the policy is good or not. The simplest explanation seems to be that Ukraine is now losing on the battlefield, because of widely reported artillery shell shortages.

Ultimately, there will be a standoff between NATO and Russia, so perhaps the US is just picking a better time or perhaps they just want to wait until Putin dies of some natural cause and hope for the next leader to be different. I think the NATO countries shouldn't just hold a 90,000 person exercise, but actually actively help defend to drive out Russia. What's Putin going to do? Threaten with nukes? Launch them? He can do that anyway. If the West didn't build some kind of working defense against nukes despite them knowing such weapons existing for literally decades, perhaps the West is just not the evolution nature has in mind. It seems that Europe doesn't even have enough nukes to cover every square inch of Russia. That's not even a MAD-strategy they can execute on their own.

From a distance, it seems that the US doesn't believe it's a world power anymore.