Answer:
subject complement
It completes the meaning of the subject and gives us a better idea of the subject
This quote means that humans can always find a flaw in someone else in order to make themselves bigger than others. People refuse to let go of flaws, they believe in an idea of perfection and so we say blue eyed blondes are beautiful versus saying we are all beautiful in our own way.
In simpler terms, we refuse to see our differences as perfect.
