No. I'm saying that in complex wars with many parties, it can be simplistic to label people as dedicated to a cause when they have merely made an alliance of convenience. What you're talking with Zelensky is different. Nazism is a direct threat to his ethnicity.
I'm not sure where Obama enters into it, though. Black people have been killing other Black people in Africa for a long time. When ethnicity is involved, it's usually tribal instead of racial.