Not having the “maturity and manners to properly and civilly express preference” does not change the fact that most women like/prefer medium to big penis. What difference would it make how they expressed that they still don’t want you and that’s not going to change regardless and how they sugar coat it, facts are facts.
Having a big dick does not make “rude people polite. . .” , but nobody is mocking/shaming/laughing or otherwise questioning manliness of a big dick or questioning theurvootential to satisfy. So yes, it is easier and better if you are big, because yiu do not go through this. And it has nothing to do with being a lousy lay or not, that is within your control, but a dick is either thick enough to fill you and long enough to reach spots or its not. And not talking about “perspective” either, but real measurable facts, 4x3, 5x2.5, 4.5x2.75 etc. is not medium or big by any standard, not talking “average”, but real sizes (small, medium, large)