Honey I am so sorry. But let's not think he is a bad person. He is your dad.
Now, He said he didn't think it looked very patriotic. Is he a veteran? If so, he may not have understood the stas you used in the quilt. They are not the typical patriotic, american flag type stars. As quilters, we love these stars, but to someone else, they might just be 'not right'.
Sometimes we take offense easily because it takes so much time and effort. But people that don't quilt, don't necessarily see that. So we have to understand their point of view, or at least try to help our own feelings.