We are reading and hearing a number of pronouncements on international law these days. It is getting a bit like quoting the Bible. Choose the parts that support your beliefs, but don't worry too much about being selective.
International law on armed conflict and on human rights is complex and is not easily reduced to a couple of simple propositions. The right not to be murdered, raped, driven out, dispossessed, massacred or maimed is clear, but the law on intervention is not.