A lot of white people will turn their own biracial grandchildren away because they want nothing to do with someone that is unpure. Which is why I believe many biracial people are quicker to cling to the Black community. They're quicker to claim their Blackness than 100% African Americans are. Which makes sense, considering that Blacks adore and uplift anything mixed, anything nondark and nonkinky while many Whites look down on it and don't want it near them. Family or not