From my experience as a black American. I've seen way more black people (Friends and Relatives) dating outside their race, welcomed by their family with their Non black significant other than the other way around. My uncle was with his white latino female significant other for over 10yrs and he wasnt ever welcomed to her side of the family until they had a child together. I also seen it with friends who was dating outside. My close friend who dates a Filipino woman wasnt invited to be in her home up until they had a child together and they finally gave him a chance and realized how much of a great and reliable guy he was. Maybe its just me but i've seen way more black family allow other race of people in their home than the other way around. However i honestly have seen a few White families open a little more too but but as far as Asians, Hispanics , other cultures. Its rare.