An acquaintance had written a book and wanted my opinion on it. But he was afraid to email it to me in case I got hacked and it was pirated. I told him that a first-time author has to twist people's arms to get them to look at it at all: and since it was autobiographical there wasn't much chance of it being plagiarised.
As for copyrighting a TOC: if someone had enough money to blow on lawyers they might try the same logic that sometimes covers phone directories and similar compilations -- e.g. see
http://ipkitten.blogspot.hk/2016/05/...directory.html
But in the end, only the lawyers would come out ahead.