If i wrote a story where there were animals on a farm and everyone lived happily ever after, would that also be allegorical?

Yes, or if you put them on an Ark two by two.... Also had a happy ending... Different stories though. IIRC "Animal Farms" ending was so happy Pink Floyd got in there and played some fine, if angry instead of unhappy, music.

Can you perhaps think why "the person who said this CLEARLY hasn't read a fictional story where the author gets to declare every event that takes place in the narrative and determine the outcome to be anything they see fit" is not a useful way of assessing reality?

I mean, when you put it that way it sounds bad, but the point of that particular story IS that someone (this someone being pigs) WILL replace whom you overthrow that's worse than what's been overthrown, so we all know that then...what's the disconnect?

Again, that didn't happen. It's a fictional story. None of the events in the story actually happened. The point of the story is a fabrication.

I mean yes, as is all fiction? You don't find some of the greatest fictional works in history, including the works of Shakespeare, illuminating about human behavior in any useful way? I find that notion appalling. Science fiction becomes science reality given enough resources, wherewithal and time.

If someone told you that you should read The Turner Diaries in order to illuminate some aspect of human behavior in a useful way, what would your response be?

Obviously the recommended reading would have to have some sort of applicable relevance...or the answer to your question is no. So who's doing the recommending matters, and why. But we ARE talking about fascism, etc so "Animal Farm" DOES have relevance, if dispiriting due to its outcome.

But I wouldn't use that as my only source or lens to view that issue with either, not alone.

You don't think the Turner Diaries has relevance to fascism? Or that it's not illuminating of some aspect of humanity? Isn't the Turner Diaries equal in merit to Animal Farm, when we're discussing the nature of fascism?

*if the three of us in this conversation know this about the story, where's the disagreement?