You don't have to be for war to be instrumental in it. But Yandex isn't even just a Russian taxpayer which would be bad enough. It's been apprehended by the government and turned into a key element of its propaganda machine. It's literally one of the things that keeps Russia what it is. And using results from it? That's just insane. They are poisoned, and we actually know about it in detail thanks to a source code leak. If I wanted to see what the Russian propaganda is pushing today I can go to Yandex directly. But including it in my search results automatically?