100% false, special Ed is a spectrum from high functioning to low functioning. Some kids need extra attention and support to find their element and become successful.
The diaper-changing-babysitting end of things is probably the most difficult job in the school. Think about it, it's one step away from working in a mental institution.
The whole USA teaching system exploits nice salt-of-the-earth types, chews them up, then spits them out. The system makes it difficult to even stay in it as a teacher, the job is littered with madness compared to many other government and private sector jobs.