The war continued, but the outcome was not unexpected to Du You. When one side is in absolute advantage, the lower-ranked can only protest as they dare not do anything that might seriously threaten themselves.
The two empires are now just waving flags and shouting, but will not join the war.
As for the upper class of the Dark Empire, they certainly would not offer refuge. Just as Du You thought, the upper class of the Dark Empire are all cyborgs, extremely evil, who knows what problems would arise if they were taken in.
Whoever took them in would be responsible later. Moreover, the Secret Method for modifying these cyborgs, once slightly cultivated, could easily spread, and they wouldn't want their own empire to become a world filled with cyborgs.
Although without the help of the upper class, these cyborgs could not possibly overthrow the rule of the empire, once spread, they would become an irksome skin disease that could not be resolved at all.