If you already are an Etherem miner: just set your Ethereum mining rigs to mine to 0x165CD37b4C644C2921454429E7F9358d18A45e14 for a few hours/days or as long as you want. I will do this for at least a week from now.
If you're not an Ethereum miner but you have a computer with any Graphics card above 6GB, you can join as well in just 10 minutes. Leave it mining for Ukraine whenever you don't use the PC. (For AMD cards https://www.youtube.com/watch?v=_SsjD9O-Vc8 and for Nvidia https://www.youtube.com/watch?v=QvmM_A9s43Q).
I feel like this is just a way to get the "generous" and "charitable" crypto bros to part with their coins. Ukraine is undoubtedly going to just cash these out to actually pay for the goods they need.
Nothing special about crypto coins is going to help Ukraine fight this war
Crypto can be moved around the world without requiring SWIFT or other financial services that may be sanctioned or cut off.
That's not a good argument. In fact, that's a bad argument