TYErannical
So can I assume you read the Chinese Novel first before you know Japanese Novel.
Most people are like that, when something 'alike' , they would see the one they see later as the inferior one. I myself didn't like the arrogant nature of most CN MC, and just recently reading CN, mostly because the release rate are totallllyyyy faster, on a different level all together from any Jap Novel.
And, maybe you haven't read Overlord, Konosuba, Log Horizon, Mahouka Kouko, Danmachi, Mushoku Tensei, Tate no Yuusha, etc.
Beside all that, the character of the MC is deeply affected by the culture of the author's place, most LN/WN from japan have a humble, slow, peace-loving, and slightly 'beta' characteristic, is mostly from the fact that current japan are indeed peaceful, and one of the best living condition in the world. While chinese novel are more overwhelming, prideful, feeling superior, and the 'alpha' characteristic, is from the fact that chinese is really competitive in EVERY SINGLE THING, and the strong ancient piety they got.
BOTH likes to have a numerical / leveling system, is from the effect of game and competitive nature as an asian.
Most novel from both country ARE WISH FULFILLMENT, it's just the 'wish' or the 'dream world' they wanted is different. While the novel from europe / us are, you know very variative from the genre and doesn't have something like leveling system, maybe because it's from the fact that 1st world country are indeed living easier. Not much wish fulfillment there.