“Visit Thailand” is both selling services and propaganda. “Russian war is Ok” is a different kind of propaganda. It’s easy to see the difference between the two and online ad platforms should be able to make a reasonable distinction in most cases.

No it couldn't make an easy distinction. Let's suppose someone sells stickers. A "Russian War Is Okay" sticker could be easily seen as propaganda. But expression often not direct. How about a simple white Z design?[0] Services and propaganda intertwine. Not that I'd like to defend those who profit from war. But content moderation is a really hard problem.

[0] https://duckduckgo.com/?t=ffab&q=z+russia

>“Russian war is Ok” is a different kind of propaganda. It’s easy to see the difference between the two

As an American company, sure. I'm not sure it's that easy if you consider yourself a global company. There is support (or at least acceptance) for this invasion, including parts of Ukraine.