For me personally the issue is that some of my money would go to Yandex, and, by extension, to Russian government. I understand it is only a symbolic amount per user, but still, for me, this is unacceptable (I was a happy Kagi subscriber before I found out about this).
America is nearly as bad as Russia. Dollars paid to American companies are taxed and used to bomb children in Gaza. Are you boycotting all American companies?
From my point of view United States, all things considered, is not nearly as bad as Russia. I do not boycott all American companies but I do boycott some.