These people were sidelined by the mainstream because of "false memory syndrome" and a (probably intentional) flood of claims in the 90s that made the FBI assume that the number of claims was mathematically impossible.
Therapists were cowed into silence, or else risked marginalization within the profession (this is an assumption, please correct me if not accurate.)
Only the brave speak of such things.
"There is a Catskill eagle in some souls that can alike dive down into the blackest gorges, and soar out of them again and become invisible in the sunny spaces... even in his lowest swoop the mountain eagle is still higher than other birds upon the plain, even though they soar." -- from Moby-Dick