If we want religious people to respect our beliefs, we need to show them the same respect in return. Just as it's not their place to tell us what to believe, it's not our place to tell them what to believe.
Science can't explain everything in the world, and our opinions and values sometimes have to fill in the gap. However, we must understand that only scientific facts can be used to definitively prove an argument.
Belief in a higher power can offer comfort, provide a sense of morality and humility, and add meaning to one's life. However, we can't deny that religion has started entire wars and caused uncountable deaths since the early days of humanity.