is there a way to make it onto your "team" /force?
Due to the biter AI and the way forces work, I can reduce the chance of a squad of robot solders being sent out directly to attack those things, but if they encounter them along the way or get stuck on it while moving or otherwise go into shooting distance, if it's not on the player's "force" Then they will always shoot them.
Using the forces/teams mod with GUI maybe you can see the list of forces and set the ruins faction to an "Ally" of your force?