Even if the interstellar warriors breached the defenses, captured the Starport, and even used its firepower to attack our orbital defense facilities from behind, as long as resistance continued, and the ground-based orbital cannon groups were promptly activated, the combined firepower could still resist the Alliance's attack.
As long as there was decisiveness, if the ground-based orbital cannon groups fiercely destroyed the Starport, then without the Starport's firepower attacking from behind, Shangdong Star's remaining orbital defense facilities, in coordination with ground firepower, could still repel the Alliance's not so powerful fleet!
However, the surrender of Wang Ningyi almost destroyed this possibility.
The self-destruct system of the Starport was also controlled by the interstellar warriors, but what if the remaining soldiers dared to place bombs everywhere and directly self-destruct?