I wouldn’t be a Christian

[Belacqua]

Adam had no words as he did not exist except as a concept invented by mans imagination. Just the same as the Fall does not exist.

Umberto Eco was not an atheist. You'd just like him to be. 

https://www.goodreads.com/quotes/643630-...asn-t-made

Just because ideas were developed by christians does not support the existence of a god or a continued belief in christianity. It is an institution whose time is ending. 

Are are plenty of historical ideas/actions that came about because of christianity that I wish had never existed/occurred. I hope that you do also. To not take these into account is simple one sided thinking.

I'm sorry that someone has misled you by quoting Umberto Eco out of context.

The quote you link to was not spoken by Eco. It is from page 259 of the novel The Mysterious Flame of Queen Loana, a novel -- FICTION -- written by Eco. The man who says the words is a fictional character. There is no reason at all to think that the sentence expresses the opinion of the author.

https://www.amazon.com/Mysterious-Flame-...052&sr=1-1

The main character in the novel is an unreliable narrator who begins the work with near-total amnesia. In the conversation you quote from the narrator is actually arguing against the man who believes in God. 

I am very careful not to write down as fact things that I only want to be true. It isn't fair of you to accuse me of doing such a thing. 

Here is a list of atheist authors from Wikipedia. Eco is listed here.

https://en.wikipedia.org/wiki/List_of_atheist_authors

Here is an article which says he was an atheist.

https://sacredmattersmagazine.com/thewis...mbertoeco/

I have also heard lectures by him (for one I was in the audience in person) in which he said he was an atheist.