Science doesn't try to turn homosexuals straight. Religion does.
I have yet to see a war declared where a faction says, "Science is on our side!" Religion most definitely does.
Science doesn't encourage people to be stupid and proud of it. Religion actively *discourages* critical thinking. There are plenty of studies out there showing strong correlations between religion and education levels. (Yes, I know there are plenty of examples of this to the contrary, but these people are few and far between)
Science doesn't convince people that they should deny their children life-saving therapies. There are tons of people who have allowed their children to die because things as simple as a blood transfusion is anathema.
What's the phrase? Bad people do bad things, but religion makes good people do bad things.
So yes, we *need* to be bigoted against religion. Religion has been the direct cause of so much damage and pain in this world that it *deserves* to be hated.