I guess if you just ignore the fact that Ukraine has downed 11 (+?) planes in the past 11 days, maybe you could call that sentiment hopium.
I do agree, things aren't looking great with the US (not the whole West, by the way) delaying aid. But what was supposedly the second greatest military in the world is stuck in a quagmire with a neighboring country a fraction of its size. They are making only minor progress at enormous cost.
It's a waiting game. Neither of us have the facts about what is actually happening with the Russian military or economy. Saying that, I don't think you can dismiss the recent losses by Russia as insignificant.