Explanation:
you have no picture you have to give us more detail
What Hawthorne cares about, and it comes up constantly throughout the book, is the inheritance that accompanies the Pyncheons and lead them down to a bitter path: "weakness, defects, dark passions, the tendency to do the evil and the moral weaknesses that lead to crime pass from one generation to another".
People use logical fallacies because they don't know how to effectively prove their point. For example, politicians may try to attack their opponent's reputation instead of mentioning something that is actually relevant to the topic.