Just so I’m not picking on the Republicans: Bill Clinton, John F. Kennedy, John Edwards, and Franklin D. Roosevelt are all known cheaters as well. It turns out, adhering to a particular political ideal doesn’t make you any less of a cheater, even if you’re constantly claiming that your political system makes superior moral family men. However, when it comes to politicians trying to force biblical “moral” standards and “family” values, it’s usually the Conservatives pride themselves on what they think is biblical adherence.
Adultery shows a lack of integrity. If you’re not the kind of person who can commit to a single person, maybe you shouldn’t have promised eternal commitment in the first place. On the other hand, with all the pressure that is put on people to get married early in life, prior to them really understanding who they are, it’s understandable why it happens so much. Not to mention the taboo on divorce that discourages couples from parting even long after the love is gone.
Marital infidelity has been a problem since the dawn of marriage, and it might be related to the genetic male desire to spread his gametes as much and as often as possible. However, ever since we evolved consciousness, biology stopped being an excuse for bad decision making.
While I believe that a lot of cheating could be curbed if people were given formal lessons in self-control, I wonder if a big part of the problem is with modern culture trying to force everyone into a single male-female coupling. Humans have tried all sorts of different combinations including polygamy, open marriage, and even group marriage. Each of these alternate groupings have only enjoyed limited success, though this may be because they’re often forbidden by law and religion, not because these situations are inherently bad at forming a cohesive family unit. A lot of research has shown that two parents are better than one, but hardly any has been conducted to see if three or four is better than two in an environment where the culture doesn’t frown on it.