Reality is an absolute, existence is an absolute, a speck of dust is an absolute and so is a human life. Whether you live or die is an absolute. Whether you have a piece of bread or not, is an absolute. Whether you eat your bread or see it vanish into a looter’s stomach, is an absolute.
Just as, in epistemology, the cult of uncertainty is a revolt against reason — so, in ethics, the cult of moral grayness is a revolt against moral values. Both are a revolt against the absolutism of reality.
A moral code impossible to practice, a code that demands imperfection or death, has taught you to dissolve all ideas in fog, to permit no firm definitions, to regard any concept as approximate and any rule of conduct as elastic, to hedge on any principle, to compromise on any value, to take the middle of any road. By extorting your acceptance of supernatural absolutes, it has forced you to reject the absolute of nature.