You are an articulate person with a heart, so there's another.
My mom was much like your dad...belittling my every word and move for as long as I can remember and teaching my siblings that as long as they did the same, they had her undying love and devotion. Its a sick game played by twisted people who hate themselves and you (as hard as it is) can't let it deter you from loving the you that you are.
It took me years away from home to discover on my own that I wasn't stupid, I wasn't ugly and that I actually had something to offer the world if only love.
Love is a powerful tool and a powerful weapon...never forget to use it on yourself as well as your enemies.
Believe me, your dad is more his own enemy than he is yours and he may never change, but you don't have to feel how he does about you when he is only reflecting his feelings about himself onto you (giving himself someone to blame). You know better than what he is saying so try your best to let it go now and live your life as you know it pleases God. Time away from your dad will show you just how right you have been all along.
Hugs & God Bless,