You are right. It is counterproductive to hate them because what some have done.
I don't know if we get Christmas stamps any more or not but I like being able to have them. So I think it's kind of neat that a Muslim in America can buy a stamp commemorating their holiday and sent it to their friends.
Down the road mint sheets of those babies might be worth a lot of money.
And there's always the chance that you might find one with the lettering upsidedown. :-)