Hiding my engagement

The Little Mermaid
My fiancé wants to break up with me for hiding my engagement from parents. They never approved of him because of his race... Idk what to do anymore. My dad is truly serious about not marrying this guy. Been together for 6 years and my parents only saw him 5 times. Now my fiancé says to tell them now or we break up.... I'm scared.
UPDATE: I told my mom but I was sobbing 😭 Idk why. Just a feeling of relief after so much fear I guess. She hugged me, told me not to worry and that she accepts my fiancé. She wants me to be happy. However, she think I continue to "hide" the ring and make my fiancé "ask" my dad "can I marry your daughter" because it's "tradition." What do you all think? 
My fiancé says he's not willing to "ask" him because he's proposing to me, not my dad.
I am scared for my life because he has MAJOR anger issues. He's from Lebanon but very very very racist and strict.