Just wait until you find out how many people have actually died as a direct result of that flag and what it represents. Many of whom were targeted for the mortal sin of being born with the wrong skin color.

No one should have to be hurt over flying a flag, but fly a confederate flag that high and that proudly in any other context other than OP's fathers and you're sending one hell of a message to your neighbors about many, many atrocious ideals.