i think when people talk about dsm diagnoses being 'destigmatised' it's usually the case that what they mean is the public perception of the diagnosis name (depression, anxiety, etc) has become associated with minor, temporary, or resolvable forms of distress. the experience of being so depressed you cannot get out of bed, or brush your teeth, or work -- that experience and those behaviours have never been 'destigmatised,' only associated with other diagnostic labels in certain discourses seeking to present 'depression' as treatable or minor. it's basically a semantic nosological shift, rather than any actual 'destigmatisation' of the behaviours psychiatry exists to pathologise -- widening (minimising) the diagnosis, then just moving any leftover 'scary' symptoms to a different diagnostic bucket. it's a rhetorical shell game that does not challenge, but exists symbiotically with, the ableism that causes behaviours like "not being able to get out of bed" to be stigmatised in the first place.
