If a seriously mentally ill relative is a danger to himself or others then the authorities must be called very hopefully a team trained to deal with mental health emergencies will answer the call.
Strange is not necessarily dangerous. Giving the seriously mentally ill individual some space can solve a whole lot of problems.
In short term mental hospitals given the diagnosis is schizophrenia and the individual is over 25 basically the only goal of the hospital is to get individuals stabilized on medications. The dosages will be high. There really are no other goals other than med stabilization.
The point is that in short term hospital meds are being adjusted and not much else. If the authorities had to be called the experience will be profoundly traumatic for the entire family including the ill relative. Despite the trauma if the seriously mentally ill relative is a danger to himself, herself or others the authorities have to be called.
That there are not more long term beds in hospitals is a good thing but even if this was a bad thing still there are no long term beds in mental hospitals available. The authorities are not coming to take the ill relative away for more than a few weeks. The ill relative is likely coming home after a very traumatic experience.
Meds can be adjusted at home. The key to an ill relative taking medications is the ill relative deciding to take medications. Giving the ill relative a lot of decision power over what meds he takes and at what dosages increases the chances he will take medications. Safe for himself or herself and others even though still strange even quite strange has to be viewed as a win when the diagnosis is schizophrenia. Low dosages are much better than no dosages. Keep the ill relative from posting on the Web.
Giving the ill relative as much decision power as feasible and giving the ill relative space in which he could be strange is the optimal strategy. Will this work every time? No.