Racism in America: A white person dates black can they still be racist?

I have heard white folk , when accused of being racist they will say "I'm married to a black man I'm not racist". "I have black grandkids". "My best friend is black". Can these type of people still be racist? WHat about a black person , can they hate themselves and their own people? Some will say no , but I say yes. I seen where white woman will date black men but hate black woman.  How is it that black folk are so comfortable, CANDACE OWENS, Black leaders, Black caucus, disrespecting their own. Black folk have to see what's right in front of your face. Just because white folk smile in your face doesn't mean their not racist. I seen a time when we though racism was gone, we thought we were free. I have heard white folk say this and act surprise when they see the news of police brutality and say I though racism was gone. My question is how do we recognise a fake , racist? Let's talk about it.