Why are Chinese MCs so alpha?
Also, giant Chinese mermaid is mai waifu.
Eh, MC is boringly "alpha" and is given incredible plot armor and power (muh hybrid bloodline) just because, huh, he's the protagonist.
NiTian ErXing is more "alpha" than Wu Geng because he actually fights for a cause and let his actions speak rather than his words. You don't seem to be at that part of the story though yet so I won't spoil you.
Why can't Phoenix dude and lazy Sage King return to earth when Xuan feng did exactly the same thing earlier and Phoenix could come back just fine?