If you have enough turrets they deter a seige I'm being honest here you clearly dont play this game. I seen sieges fail because of turret placement. Removing turrets and not giving pobs an alternative is pretty cancer. If you remove it I expect to see an extreme buff in HP or some other way to defend our bases.
Just as the constant increase of entropy is the basic law of the universe, so it is the basic law of life to struggle against entropy. - V. Havel