I've linked elsewhere to the Hippocratic License, which freely refers to itself as open source while specifically being built around refusing licensing based on ethical considerations. OSI don't own the term open source, and the simple and plain meaning of the term is clear to see. Otherwise, we wouldn't consider GPL software to be open source, because it attaches conditions on usage. That even applies to non-copyleft licenses like MIT which demand author attribution. The term open source is best read literally unless someone says "I want an OSI approved license".