Luo Yang isn't afraid of the Eight Immortals Hall, Jiuyang Hall, and Shi Sheng Palace, among other Major Powers.
It's just that Luo Yang wants to quietly become the richest man in the world, leisurely drink some wine, smoke, take beauties on a yacht to sunbathe and play in the water, and spend romantic nights together. That would be a perfect life.
As for becoming the Sect Leader of the Blood Devil Sect and Sect Master of the Ten Thousand Souls Sect, Luo Yang isn't particularly interested.
Especially for the Sect Master of the Ten Thousand Souls Sect, if Luo Yang takes the position, it would mean one husband with three wives, and that's just about all the members.
To grow the Ten Thousand Souls Sect, you'd need core members.
And children are considered the most trustworthy core members.
This way, Luo Yang would have to make the three Gu sisters have more babies.