Just as the atheist does with God, you blindly and falsely assume that alcohol only causes society harm because it harms a small number of people that become addicted to it and they in turn can harm others. But most humans can and do use alcohol to great positive benefit without hurting anyone. Just as most people do with their faith in their gods.
Your own analogy bears out the irrational and untrue bias that fuels most atheism. And that bias is being created by using one's personal experience as proof of some otherwise false 'universal truth'. "It's bad for some so it's bad for all."
Dislike my perspective if you want; it's still valid.