The Blood Demons, having successfully changed their stance, paid countless prices to integrate into human society as they have now. In fact, the integration went so well that they learned things they didn't need to, such as honestly walking the straight path and working for a living, leading to news of Blood Demons being exploited by unscrupulous bosses.
This may seem quite pitiful, but it's rare to have some hard work and suffering guarantee a stable life.
Not many years have passed since being hunted by the whole society, and they've always lacked security. To integrate into society, they would do anything.
The Blood Demons occasionally exhibit some erratic behavior similar to the Elves, but the difference is that the Elves engage in it for fun out of their own will, while the Blood Demons do it out of unfamiliarity with society and a desire for acceptance.
