Are you saying that that's not how you would define κόσμος ?
Your "arguments" were shown to be nonsensical, tying the definition of αποστέλλω with κόσμος and the like. Weird.
You are fond of quoting Trinitarians for your view. Maybe AT a Robertson's Word Pictures for J 17:18 will help you see the connection.
I am surprised that you object to Jesus using αποστέλλω into κόσμος being used by me to explain what κόσμος means.
How they were sent has a great deal to do with how they were "in" the world.
At least you don't play the paradox card and say they were in the world and not in the world! Hey man, that's deep! John OBVIOUSLY meant this: [insert any old ungrammatical view].