Obviously, Dong Genji did not want to prevent others from stopping Jiang Hongyan going through her tribulation, and he did not mind others destroying her cultivation. This demonstrated that he also wanted to eliminate the misfortune Jiang Hongyan caused.
Once Jiang Hongyan's cultivation was destroyed, she would become an ordinary woman, and she would no longer pose a threat to any faction or Family in the entire Eastern Continent.
Jiang Hongyan had always been the most talented among her peers, and no one had ever surpassed her no matter how hard they tried. Neither had Dong Genji, and most importantly, he had failed to win Jiang Hongyan's heart.
Now Jiang Hongyan had returned and Dong Genji could still not force her to give in—even if she was just in the highest level of the Infant Transformation Stage.
But if Jiang Hongyan's cultivation were to be destroyed, Dong Genji could easily get her.