Unfortunately, we need gas, he can't really expect for half the europe to be without heating and electricity!?! Regarding planes, no country wants to give their MIGs up. But they should, because it's better to stop Putin now. Get an agreement with the US to send more of their planes to europe, at least temporarily and sell/give those MIGs to Ukraine. Unless there's been backchanneling that Russia might consider that an act of war and someone got scared. But I assume the planes still need to be adapted to be usable for Ukranian airforce. Unfortunately, that's just not that simple, but we should be working on it ASAP.
Regarding SWIFT, I don't think that can be true. Sberbnak was hit very hard with sanctions.
https://en.wikipedia.org/wiki/Sberbank#International_presence
Obviously the Ukrainians are the good guys, but they have keep harping and asking for help. They have to keep making noise. I don't think everything they do or say is accurate. There will be (is) a lot of propaganda.
What we know is that sanctions are hitting Russia hard. Russian posters here confirmed it. They haven't even opened their stock exchange yet.