Look, you are all being way OTT.
It's all great to be PC but it is not acceptable for a patient who has dementia and/or is disorientated because of a confusional state to be allowed wander around a ward and get into bed with other patients, causing them physical and emotional distress. If their mental status results in distress to themselves or others in a hospital environment, something is going wrong.
I mean, honestly! Several members of my family have psychiatric conditions and I am a keen advocate for their right to dignity, privacy and respect but if they are not in a stable condition, it is not unreasonable for people who are ill and vulnerable to feel intimidated if they are not being adequately supervised. There is a "how very dare they!" attitude by some on this thread but we are talking about VULNERABLE patients being wary of a group of patients who are confused/disorientated (for whatever reasons) when they are an unpredictable group. It's not about bloody stabbing stereotypes! Given the current state of staff-patient ratios in general wards, it is unlikely that either the patients who are confused or those patients who are not are going to be given enough care in this situation.
The real answer is better post-operative care for all, but is it NOT unreasonable to question the appropriacy of limited supervision/tending to the needs of patients with psychiatric conditions who are in distress. It is NOT unreasonable to be distressed by the manifestation of this distress if it is rocking, screaming, sobbing, wandering or coming into close physical proximity or contact with other patients, especially when you are in an vulnerable state yourself.
The right to dignity, privacy and respect applies to ALL post-operative patients, not just those with dementia or acute confusional states and if the current system isn't working and staffing isn't likely to change, "segregation" is not about "apartheid" or dehumanising those with confusion or who are disorientated, it's about ensuring an optimal recovery environment for all.
I don't think it's an easy answer but it's certainly not the retrograde insitutionalising step some are making it out to be. Why should patients who are ill and in pain need to be "tolerant" of other patients? They rightly focus on their own recovery in this situation. It does not make someone a bad person to feel a bit intimidated when a person is acting in a confused and disorientated manner and is ambulant when they are unable to protect themselves in a bed.