How Come Someone Who Cultivates an Immortal Is Treated as an Alien?

Traveling through eighteen years, the system was accidentally awakened while saving people; Xia Yu, who has a useless spiritual root, thought that he could cultivate immortality and seek immortality just like people with spiritual roots; Unexpectedly, in this world that values spiritual roots, he has become an alien in the eyes of immortal cultivators; His sympathy gradually turns to disgust as the truth is revealed; "Since you value spiritual roots so much, I will use my own strength to cut off this bad root with my own hands, so that no one in this world can use spiritual roots to control everything."