When making this decision, those people also went through careful consideration, struggling for a long time between the choices of being unfilial and their own safety, and in the end, they still felt that their own lives were more important, thus they chose to betray.
Of course, in their view, they did not consider it betrayal, but rather that the Human King was unjust, and they had no choice but to willingly defect.
These three major classes of the Human Race, coupled with the lineages of other races, are the current base of support for Martial Sovereign, as well as his confidence in the struggle against Jiang Chen for the throne of Human Emperor.
Otherwise, if relying only on the lineages of other races without the support of the pure-blooded Human Race, even if Martial Sovereign became the Human King, he would not be able to secure his position.