Their particular religion. Every religion gives you a set of rules to follow, and if you don't follow them you anger God. It's impossible to adhere to everything WE'RE ALL DOOMED.
Christianity has been used since its inception to rule the hearts and minds of colonial subjects. It was the spiritual fabric behind the societies that led the slave trade, the holocaust and apartheid. IS want us all to be Muslim or die. Perpetrators of all this can all kiss my whatever.
Everyone thinks they have the particular, special correct religion just because their parents put a particular book in their hand when they were children and everyone else is tainted.
Guys GROW UP.
I am sick and tired of proponents of various religions telling me how they have the truth and I must follow what THEY say.
PLEASE NOTE: I did not say I'm against religion, I'm just saying all the pious, ‘holier than thou’ attempts to make me accept various flavours of various religions have done the exact opposite.