Late 18th to early 19th c. people with compassion and insight opened sanitariums to provide care for folks with brain disorders. Much of the care was truly revolutionary and helpful. Some of it was other things. The public was impressed and inspired.
The founders died off and institutions continued on without their vision. The public lost interest; funds waned but need did not.
By the 1980s institutions were no longer safe or caring. The public had moved on. Few in power knew or cared.
Politicians saw funding streams they could grab w/o risking reelection and forced our MI population into homelessness.
We're still there. My 5 state institutions are dangerous hellholes. Homeless are everywhere here.
source: w/o long-term inpatient care, wife left the family to become homeless