Regardless of the quality of an individual facility, it’s a myth that people are held long term. Also, the quality of the worst facilities today are still a far cry from the 70s. There’s a large amount of legal protections around people being involuntary held. Nothing is comparable to legitimate torture.
To be clear, you can ONLY be held if you continue to be a threat to yourself or others. The only rights you can lose are those that involve stopping damage, violence, suicide, homicide, etc. and the more extreme the case, the more extreme the intervention. I’m not going to lie and say that people who are physically violent and attempt to harm staff don’t get chemically sedated.