I am a negative utilitarian consequentialist. How is that relativism?
As a utilitarian, I largely believe the outcomes are very important in ethical decisions. Certain outcomes are preferred such as the reduction of suffering. I do not see how that view could be deemed relativism as it states that certain situations are to be avoided. You may indeed be correct when if you think that most secularists are relativists as most secularists that I have met are not utilitarians.
To reiterate, how is utilitarian ethics a relativist ethical system? Utilitarian ethics, of course, rejections any instruction from “natural law” and simply focuses on the satisfaction of preferences.
(One can argue that the term utility is hard to define (most people would simply say “happiness,”) but I do acknowledge the difficulties of defining it. However, I define it negatively and say that “utility” is antithetical to suffering. As a negative utilitarian, I believe the reduction of suffering should have a high ethical priority.)