Should I date her?

Ok my friend hooked me up with this really nice girl and we have talked for weeks and we really hit it off and I like her she 19 I am 19 just I perfect match all around now the bad part of the story she is black and I am white and my mom does not like black people and my friends that I hang out with don’t like black people either and my grandma and grampa thank whites should only date whites so I have all the not in my favore if we were to go out and people were to see me holding hands with her I am scared about what they will say. But I do have one thing going for me my dad he back’s my 100% he said he just wants me to be happy. So what should I do I mean she is a really sweet girl and I don’t want to hurt her and I want to date her but I feel like if I date her I will be going against my family and I thank they would disown me what should I do pleas help

P.s I am not a racist I really do care about this girl but my mom is and there are a lot of people in the world as a hole today that are racist that is why I would be afraid to date her and go out in public becaue I am afraid of the looks we would get and the things people would say pleas help me