At the end of the day you have to take offence. My general thoughts would be "Meh, the guy is a nutter." But instead we had "Oh no! How can you?" and then riots and effigies being burnt...
Unfortunately most are not as enlightened or tolerant of others as we are.
I would think you were a bit of a nutter, but I really wouldn't find it offensive. Why would I? Unless you are specifcally threatening my daughter it is having no direct impact on her. Not to mention my daughter is only a four year old and not a religion with millions of follows and supposedly all powerful God that can look after himself...
But is it not an implied threat.