One of the most famous examples of religious zealotry is the Westboro Baptist Church, who take the conventional "God hates... [insert minority group here]" signs to the extremes of pretty much sending everyone in existence to hell. They are the kind of people who show up at the funeral of a soldier and chant at his family saying that their beloved son has gone to hell because he fought in a war that displeased their God. This is beyond despicable and anyone who has any sense of compassion would realise this. This disgusting behaviour is passed off as patriotism and religious fervour.
It's not; it's hateful.