My story is set on a continent where racism is rife, and the people of that continent are trying to force out all of the people who moved there from the southern continent, and their mixed-race kids. My MC is mixed race, but no-one on the continent knows this. She much prefers the lifestyle of the northern continent and hates the way the southerners are changing it. Because of this, she hides her racial identity and becomes a driving force for getting rid of the southerners. Do you think this is a good enough motivation for someone to cause such suffering to people whose racial identity is half her own? It's not that she wants to cause suffering to those of southern descent, she just wants them to go back to their own land, so that the northern land can stay the way she likes it.