Since Hope Family is mainly consist of monsters, of course they would still treat their own kind better than other races, Shadowslash didn't say anything about their thoughts.
On his former life, he is human so he doesn't care which race he is in charge of, he will give them the same opportunity to rise up as long as they prove their worth and be loyal to their empire.
Thousand Race Empire is the greatest power of this world because the subordinates or the people in charge of the empire is blindly loyal to him, Safehaven Paradise is under Amethyst, even though it isn't noticable, she is slowly converting the thoughts of every beings inside his world.
They would forever be loyal to him and he doesn't have to brainwash them, they just need to live inside Safehaven Paradise for a certain amount of time.
Back to the present, the four great kingdoms started moving and their movement couldn't stay hidden, instantly the powers of this world became curious.