Addiction has a medical definition, not a connotation.
As previously shown, SSRI’s do not cause addiction, even if they can cause withdrawal or physical dependence for some people.

I guess I’m wondering if support of this policy has to be riddled with asterisks and accompanied by statements that express hopes of how the programs will be run, then why express any support at all for them?

And finally: There are safe places available for people to go if they feel they are having mental health issues that require more intensive care. Mind you, these are really only available to people with health insurance - Regan largely killed off federal and community mental health care in the 80’s. Care that cannot be replaced with a labor camp.
The only proper replacement for that care is rebuilding that/those system(s), and that is not what RFK is proposing. He’s proposing a labor camp to take advantage of and imprison away vulnerable populations.