The average Human simply does not know, or does not care, that every moment of every day magica flows through their minds and bodies.

There are a variety of benefits this grants them. They are healthier, stronger, heal faster, have less illnesses, have less ill effects during pregnancy, need less food, and live longer. They also can learn to externalize this energy and cast spells or enhance their fighting prowess. 

But this is not how it SHOULD be. Fundamentally Humans have been changed, and their destinies subverted. Their achievements are cheapened and made lesser.

To make matters worse, their magica rich flesh is the perfect food for Demons, turning all Humans into prey.

This "blessing" is neither appreciated, nor does it actually help them. It is a curse that is woven into the fabric of their reality.

-Musings on humanity, by The Snow Queen