My wife has had 4 major and 2 minor surgeries since 2009. She spent all but 2.5 years since then in acute or long-term care. She was able to come home during that interval 2.5 year period because of good home care supports. 

Once she was taken to emergency 3 times in 8 days before she was admitted to acute care. And then the admission was to acute care monitoring (ACM - ICU for non-surgical patients). That was the 3rd time she went directly to ACM and each time she was on death's doorstep. She's never been admitted unnecessarily. You don't know what you're talking about when you say patients are admitted unnecessarily  to acute care. That is not the norm. But there are indeed a lot of ALC patients in acute care hospitals.