Rightys are idiots. If people decide not to buy things from some stores, they will buy them from others. The economy is intact. Stores that do not want to hire gays, blacks and LGBT will lose out. Stores that do will make out. The impact on the national economy is zilch.
Ask Target and Chick Fila about how that works; Chick Fila still has lines out the street here as result of standing up to your pervert kiddie protestor heroes. Target can't even fill up their parking lot on a Saturday or Sunday, they barely fill an eighth of it.