He submits to her if she is allowed to call him a racial slur. They got a kid too

she can dip and he'll be paying child support and probably spousal support too
Do you even know what racism is? Why its so damaging? FYI it has nothing to do with name calling. Racism is about the belief in the superiority of one race over another. What makes is so damaging is the fact there are unequal power dynamics between races that allow some groups to exact their prejudices on others.
When a white woman decides to get in a monogamous romantic relationship with black man she is admitting through her own actions that she does not view black men as inferior. Genetically as humans we are driven to mate with the best partner possible. No one intentionally mates with individuals they believe are inherently inferior. It simply makes no evolutionary sense.
Simply put its impossible for a white woman to be racist while enganging in a romantic monogamous relationship with a black man. Her actions prove she does not believe black men are inherently inferior to other races. If she believed that, she would never have engaged in a relationship with anyone black. This is simple science.