How would I not consume them whole? You use that word a lot "whole". I'm not sure what other way I can eat just a egg or just meat or just fish. If I put it with anything else it's not just a eggs, fish and meat diet. So lets forget about whole.

Protein is the main thing one will be getting too much of in that diet. Fat will be the next thing. I'm not calling fat or protein bad. But just like water and most anything else, too much can be a bad thing. And there are more than a few other things that might arguably be too high a quantity and arguably might be detrimental at that high level.

A diet consisting of only eggs, fish, meat/offal will likely give health issues long term. If you don't believe that getting too much of a good thing can be a bad thing, then I'll never convince you.

I'm not as down on saturated fats as others might be. However this diet will have way too much. And long term, it'd be expected that LDL will be high and risk for heart problems will increase. Also, too much protein will in the long term have potential for gout and kidney issues as well as liver issues. Gout also will probably affect a higher percentage of those on such a diet.

The nutrients that are not there that you ignore, vitamin C, B9, magnesium and potassium , can in the long term result in a weakened immune system and bones. Essentially scurvy. Which in the 18th Century it was realized that people with severely limited diets will benefit from fresh fruits and vegetables.

And while you don't consider fiber a nutrient, it is needed just like water isn't a nutrient but is needed. Insufficient amounts of fiber will likely bring bouts of constipation during the short term and colon cancer in the long term.

I'm not exactly sure what you mean here. Other than you are purporting a diet that you don't even partake in. And it's a bad diet strategy that you suggest.