This question has undergone continual editing since being posted yesterday.
The asker keeps reverting it to versions that contain, literally, paragraphs of unnecessary text. My edit (version 20), removed three long paragraphs of irrelevant material that preceeded the actual question.
I don't see how including paragraphs of material is necessary to preceed the basic question, which I have pared to this:
I heard the term "chemical lobotomizing" in a YouTube video. It is in the context of destroying people's brains by injecting the people with certain drugs. I wonder what other verbal phrases could be used here? In some languages "reducing a person to a vegetable" could be used ... but would "reducing a person to a vegetable" sound good in the English? And what other phrases could be used here instead?