"Mental health support" is largely a way for people who are damaged by capitalism and fascism to simply cope with capitalism and fascism. I have personally benefitted greatly from therapy and anti-depressants, it's saved my life. But it's only brought me to the stage where I recognize I have to fight capitalism to be happy, rather than living under capitalism.
The goal of these institutions is to get workers back to work instead of killing themselves and others or more seriously questioning their environment. Beyond that, it alienates people from communities. Instead of talking with your friends and family and neighbors and strangers about your mental health, you pay someone to listen to you. These institutions break down communities by making mental health a commodity, sold by therapists and bought by people struggling under capitalism.