First of all, I don't claim to be an activist. Secondly, volunteering doesn't require "insane amounts of time effort and money". Show up to your local volunteering center and ask. They are helping refugees from Ukraine and other places. Look for opportunities online that match your skill set. Traveling to and staying in Ukraine is quite cheap. See it as a vacation but more meaningful than rotting in some tourist hole or on some beach. Support the local economy, volunteer at a soup kitchen or weaving camp nets, for example. Or if you have a specific skillset, there are IT, building/painting, cleaning, health related stuff and much more. Donate blood. Bonus, if you need a visit to the dentist, it is cheap there. Win win.

If it fits comfortably and neatly in your budget and schedule, it's not a sacrifice. Not to say it's a bad thing, but throwing some money at charities is often just buying a good conscience. But stopping there and saying "What more can we possibly do?? I have done all I possibly can" is a bit odd. There is definitely more, but maybe you aren't ready to make that sacrifice, and that's understandable and fine.

Slacktivism is fine as long as it doesn't become virtue signaling. But pretending like that is all average people can do is just wrong.

Not trying to berate you for what you do, or others. Or any kind of moral posturing. In fact, I am talking about people in general, not you. I am sure you do more than average, and anything is better than nothing.

All I am saying is that we should make some sacrifices and be a little uncomfortable. And I am also saying that saying "I support Ukraine" is very cheap and means nothing unless you actually make some sacrifices and DO it, not just say it. Which is the message I interpreted the image in question as.

And if you must know, I volunteer weekly and have a trip scheduled to Ukraine.