I tried to translate into grammar legible by human beings:

You overestimate Saitama too much saying he can never be beaten. I mean seriously Saitama destroyed a meteor with one punch, so what Trafalgar D. Law cut a meteor in half. One-Punch Man is known to have weak opponents against Saitama. I don't know where the ideas of him being able to destroy the world with one punch came from.

I mean seriously do you know how big earth is Goku can beat Saitama if you disagree you are lost and Luffy can beast Saitama. I know you all underestimate Luffy, thinking what can a rubberman do and exactly, he is rubber and normal punches don't work on Luffy. Luffy has also got all three types of Haki, which are the: Conqueror's Haki, Armament Haki and Observation Haki. Observation Haki gives him a upper hand meaning he will see Saitama coming at him from a mile away and sure you will say if he can see can he dodge and the answer is yes... Yes he can dodge with his speed yes he can face it Saitama aint the strongest.