Don't you understand son, it is not a question of landing overweight. All aircraft can do that without serious penalty.
It is a question of being too heavy to make a single-engined go-around if something unthinkable like some pillock in a PA-28 making a runway incursion in front of you for example.
All commercial aircraft are quite capable of making a landing at max take-off weight in an emergency.
Perhaps you should take my advice and keep quiet and learn?