Human life is supposed to be a thing a wonderful thing...left alone and the best left unaltered by human kind; therefore, Frankenstein's creation, should be destroyed. Its not the creations fault that Frankenstein made him...Frankenstein was foolish and crazy, but because of his action he is placed in a world where he does not belong. And there are many factors that say that he should be destroyed.
One of the reasons why Frankenstein's creation should be destroyed is that he is un natural. You are not supposed to mess around with the laws of nature...but Dr.Frankenstein, un aware of the risk he was taking. Consequently, the creation has a abnormal brain, its a brain of a killer. Dr.Frankenstein did not know this, but he shouldn't of been stealing illegal parts either. So he has a brain that is programed to do bad things...you cant shake that from a so called "person"