Really, it seems that alot of the self-described fatalistic "constituionalists" on this thread were going to withhold their vote(i.e a defacto vote for the democratic candidate) over this.
Hey that's their right, if the one issuers want to get hot and bothered, but it is also my right to point out their knee jerk one issue foolishness, IMO.
A better analogy is this. You own a business, and you have an employee who's bright and capable, but has a lot of trouble with insubordination and making life hard for his co-workers. Eventually you know you'll have to let him go, or at least make it clear that you will let him go if he doesn't shape up - even though you know it will be painful, and will probably wind up with someone less capable. But it has to be done, because otherwise you know he'll just get worse and worse...