I never said "ban all Russians," I said we should be more skeptical of allowing Russian citizens to be in leadership positions on projects like the Linux kernel, especially while their government maintains a hostile attitude toward much of the rest of the world, and thus presents a greater risk of knowingly allowing malicious code to get into the tree. That's it.

Perhaps some Russian citizens can be trusted, idk, I honestly haven't looked into exactly who the maintainers are (as you mentioned, there are a lot), or where they're domiciled. I have zero issues with Russian people in general, I just think the current political climate makes it much more difficult to trust Russian citizens on these projects. They can absolutely submit code and it'll go through the normal review process, they may just be prohibited from holding leadership roles.