I never found it helped. It was not useless as a place to vent when my person was sick, but as to helping with anything else - it did not.
I think, from what people post, therapy may be able to help some people with some things. I do not believe therapy helps all people with all things. I also do not believe those who are not helped are to blame for not "working" or whatever other derogative terms people have posted to further shame those who found therapy to be useless.