Recognising our own faults and mistakes does not weaken us either as individuals or as nations. Concealing them and ignoring them does.
"Tell me what I am doing wrong?" is an essential element in learning how to do anything better. Sometimes when people are making a lot of mistakes and lack confidence it can be best to ignore some of the mistakes, and concentrate on what they are doing right. But doing it that way is a measure of weakness in the person concerned.
Is America really supposed to be seen as a faltering student to be shielded from criticism? (And that applies to other countries too.)