If it bothers you then replace it. If not then enjoy it as others have suggested.
I get where you are coming from though. These phones start at $1000. A substantial portion of that price goes toward quality manufacture and handling. I don't think it's an unreasonable expectation that it be flawless right out of the box and I'm sure that's Apple's intention seeing as how they put another substantial portion of that price into
designing the box itself.
I'm with iGeneo. You get to weather that thing. 😜