Does challenging superstition or faith protect people? Is it mistaken to support organised religion in membership or donations?

If people do good because they are human, not because God prompts them, is it right to risk giving God any credit when they alone own their good?

RELIGION IS A PARASITE THAT LIKES TO FEED ON FEAR OF BEREAVEMENT AND OFF THE BEREAVED

Someone we love dies. Our grief is not about how much we value the person as a person but how we responded to them and caused ourselves to feel about them. It is caused by human factors rather than spiritual. Nobody suffers on the basis that God made and valued the person.
 
Bereavement is not complete until you find some happiness in the thought that the person does not exist any more and cannot be injured any more or brought back to be hurt etc. God and religion just harm people by saying and acting different.

The atheist and the Christian (you can substitute any religion of your choice here) have to face one question in life and that is the only question that matters. It is, "There is nothing I can do to guarantee that I will not suffer or die. In that sense, I have to succumb to despair. I am not saying, I have no hope. I am saying I hope for the best in all things except the one thing. So how do I be as happy as possible in the face of the suffering and death that can happen to me? I can try - others have managed it. Others have succeeded."

It is as important to know what the answer is not as it is to know what the answer is. It is prejudiced and unfair and silly to say that God's love is the antidote to sin and evil and the sense that life is useless and not want to hear any other answers.

Christians hold that those who die estranged from God will be barred from Heavenly Happiness forever and will suffer in Hell for all eternity. If somebody dies without having made any sign of sorrow to God for living in sin, the Church will tell the relatives and friends, “Don’t underestimate the grace and power of Almighty God. God may have reached him and found this lost sheep.” In other words, God is going to make a special effort to convert the sinner in danger of death! How could that console people who don’t see much reason to be confident about God working to stop paedophile priests sinning? And the Church does not really believe its own answer for it says that we should never underestimate the power of the human heart to disparage the ways of God and says that hearts are good at deceiving and blinding their owners. Jesus said the Jews were confident in their hearts that they were holy but they were not (Luke 16).

We conclude that the comfort people report from faith in God comes not from God but from the way they distort their own perception and it comes from their ignorance. It is a placebo and a placebo by definition should be short-term.  Religious people need their faith challenged gently and kindly. Do not argue that it helps them therefore you must protect their faith by saying nothing that undermines it.