If you were raised in a faith that worships an omnipotent, omnipresent, omniscient being--the denial of whom would result in your burning in a lake of fire--you likely experienced a degree of tension, if not genuine stress, as you fought your way out of the brambles of superstition into the open meadow of free thought. The fear of punishment at the hands of an immense personality who supposedly knows you better than you do yourself has led many to seek counseling. And in all-too-many religious settings, leaving the faith is easier than the backlash often experienced at the hands of family and friends--such rejection may be the most traumatic aspect of becoming a nonbeliever.

Very few therapists boldly practice RET from Albert Ellis Atheist school for Rational Emotive Therapy. Zero Universities on this planet endow chairs for Atheism or the genuine condemnation of all alleged deities and irrational faiths pregnant with magical thinking..... however your dualism implied by narcissists inflicting religious trauma leaves out the likelihood MANY Atheists are narcissists inflicting emotional harm upon children or anyone for that matter. AYN RAND was the founder of the Objectivist cult worshipping money/greed/consumerism or monopolist economics and Alice was a sexual predator harming mentoree Nathaniel Brandon his wife Barbara and husband Frank O'Connor..... religious trauma is both criminal violating bodily SOVEREIGNTY and well as the most extreme emotional AND FINANCIAL abuse of victims
....sexual mutilations of baby boys and teen girls is PROTECTED BY LAW instead of universal condemnation as is cannibalism or rape

What you are asking about is very common if you have a therapist who is also a believer. Therapy is good if you can afford it. Make sure your therapist is agnostic or atheist so you can deal with real issues. Otherwise, it is all a waste of time and money.

No, not hardly.

I think there's absolutely a problem with therapists in the US not taking religious trauma seriously. I also think there's been some improvement in this regard over the years.There's a book, Leaving the Fold: A Guide for Former Fundamentalists and Others Leaving Their Religion by Marlene Winell that may be helpful. It is about Religious Trauma Syndrome; you may be able to find free resources on the topic online. There's also the Secular Therapy Project - you may get very lucky and find a therapist nearby, or at least be able to find one that can work with you through Skype or Zoom sessions. Payment is likely to be the biggest struggle there, since... the US.

I have so far not had any bad experiences with therapists, even regarding religion, but also I've mostly worked with therapists I know are secular or who specifically work for an organization that caters to queer people, many of whom have had traumatic experiences with religion due to being queer (I was lucky enough not to realize the queer layers of my identity until after escaping religion, but there's so many who weren't...)

Source? Link? Can't comment on US based only on your experience.

It is all over the U.S. Hyper Religiosity is not recognized here. The mental trauma from religion is ignored in the culture.

I have found fewer people going into psychology in these later years. This may have a connection to there being more narcissistic personalities than normal. A person must care about other people and themselves. What I see is that narcissus, do not ‘care’ so much about themselves as they attempt to feed a hungry wolf in their nature. How world they relate to anyone, seeking understanding of their inner-nature?

I found psychotherapist that I could work with, in shorter and shorter supply over the last several years. You must keep looking and reading non-fiction books on how the brain works and our development in childhood is helpful. Best of luck,

Religion can be just another tool in the toolbox of a narcissist. Religion itself isn’t necessarily traumatic—if one is brought up religious, then it’s something you outgrow, or don’t. No harm, no foul.

Probably too many believers

I went to a group therapy meeting (for depression) one time and a woman complained about her boyfriend pushing creationism on her. That got me furious and I started spouting out He has no right preaching to you!!! Creationism is bullshit! Then the therapist turned to me and said she believes in it too... That was my first and last group therapy meeting.

Religion is considered so sacrosanct that it has to be a small minority religion to get the title "cult" attached to it before mental health will tackle the problem.
It's like killer T cells letting a cancer grow because it doesn't recognize the cancer as a threat.
Yes, I AM comparing religion to a tumor in an unflattering way, because they are so very similar.

How should we know?

No it doesn't. Honestly very little mental trauma gets taken seriously. The VA is still lagging way behind on PTSD. There is a mental health epidemic in the US and people don't take any of it seriously enough.

I think in the more obvious aspects of religious abuse, trauma is recognized and treated appropriately by mental health professionals. I think maybe the more subtle aspects of religious indoctrination, dogma, etc., that lead to feelings of shame and guilt are not so fully accepted. But, to be fair, there's a huge difference between being told masturbation is a sin and being sexually molested by a priest. One has better-defined edges than the other.

For religious trauma to be recognized as the real mental affliction that it absolutely is, it will also have to be accepted that religious beliefs are harmful to the general populace.
Most especially harmful to children.

What do you think the odds of that happening really are?

I think religion is the biggest contributor to childhood trauma. It's not taken seriously enough.