As a Ukrainian user of Kagi, their partnership with Yandex is unfortunate, since they are indirectly funding the war, but at the same time I can totally see why it makes sense for the service they're providing

With a service like that you want as much diversification as possible, since western search engines can get heavily censored too. Even if they aren't as censored right now, this might change at any moment with us not even noticing it

For example, right now Yandex tends to be much more lenient to piracy, since it's basically legal in Russia