While I do not share the animosity of other Capsuleers - after all, I fight for freedom and integration of all forms of sentience - I cannot help but note that your stance is, well, naive.
By being part of the EDI fleet, you are by definition a combatant, not a civilian. Whether a convention changing this should exist is moot right now - none of the Empires, not Concord nor EDI consider such a distinction. Ships directly supporting fleet actions are valid targets, no matter their paint.