Uuuh... What? I don't feel uncomfortable around non-Black people. I'm part-White, there's White people on both sides of my family, my step-father is White. The only thing that makes me uncomfortable is people who are ignorant and refuse to see that not everyone is treated equally in this country. Especially when it comes to the treatment of women and POC.
The only reason I may choose to hang out with Black people more often is because of cultural differences, but I don't pick my friends based on race since I myself am multiracial anyway.