Religions are just cults that have made it. Religious beliefs are just that - beliefs. In other words theyre groundless, along with all the other false notions, superstitions and myths humanity has ever invented. By pandering to human weaknesses beliefs can be made attractive and addictive. Addicts must deal with their weakness as best they can.
Trying to spread a religious belief is akin to trying to encourage a narcotic addition. Its not nice and shouldnt be tolerated. If you have the misfortune to meet with a religious addict be aware that there is no point arguing with them. It only enourages them.
The best course of action is to respond with yes dear and thats right dear, whatever they say, as if talking to the simple or the mentally impaired. Which is, in many ways, what they are.