Why some Manhua's author makes MC strong and omniscient like they lived long life and elders are nothing front of them? What's your opinion on this manhua?

[The Omnipotent/The Almighty Master] This manhua has many scenes where author present MC like omniscient and omnipotent. Mac know everything and is 17 years old and can disrespect elders or others. And also why Manhua's author always disrespect other countries? Not every manhua but some manhua disrespected other countries. Why? ¯⁠\⁠_⁠(⁠ツ⁠)⁠_⁠/⁠¯

[The Omnipotent/The Almighty Master] This manhua has many scenes where author present MC like omniscient and omnipotent. Mac know everything and is 17 years old and can disrespect elders or others. And also why Manhua's author always disrespect other countries? Not every manhua but some manhua disrespected other countries. Why? ¯⁠\⁠_⁠(⁠ツ⁠)⁠_⁠/⁠¯