Isn’t religion, for those who follow it (I don’t), one of if not the most important aspects of their identity and life’s purpose? I love breakfast food, but not that much.
Don’t some religions not get along very well?
Given your criteria, what should be asked? Check the boxes for the physical and mental illnesses you have? What’s your BMI? How much time do you spend online? What percent of your diet is highly processed foods?
Is gender/sex also nonsensical? Is languages spoken also nonsensical?
They are asking what policy decisions hinge on that religion question. Given 1st amendment protections against government policy that favors one religion over another, I think that’s a fair question to ask.