OK, let's say you have a game that appeals to core and casual. That is possible I agree. But that would still lead most core games as pretty low in sales. And most popular games would be casual. As casuals - as in each other hobby - by multitudes outnumber the core. A lot of people watch Marvel movies, but the movie enthusiasts watch movies that others don't even have heard of.

Mass appeal by default means casual.

Think of movies... the top grossing movies are for core and not for casuals? Low grossing movies means casual?

Just no.

A core gamer doesn't care how much the game they play has sold. It's casuals who pick games based on popularity.

So to stick to the point at hand (highlighted in bold above), you are most definitely a casual gamer.

And are they a big group? In this statistics it is indicated that core gamers (here called super gamers) are actually the smallest group, which also makes the most logical sense: https://www.statista.com/statistics/300942/number-core-gamers-usa/

NPD lists a core gamer as gamer that plays 5 hours a week i'm not talking about enthusiast. 

You literally mentioned PC.
Are you trying to troll me or something? First you shift the goal post, then you get upset when I elaborate on a topic you present?

I know many core gamers who are happy with the Switch console for specific genre's like JRPG's.

Why lie? You have literally used popularity as your argument. "I.E. What the majority of core gamers are looking for"

You are literally being hypocritical in your reasoning and flip-flopping between standards to forward a false narrative.

The Mac is even more niche' than any Nintendo console as a gaming platform.

I don't think the NPD groups definition is entirely relevant or a source of truth in regards to a definition as it's not their primary purpose.

Nintendo's Core demographic exists and it is massive.

McDonald's sells the most hamburgers. I guess McDonald's is for foodies and not casuals....

you're a core gamer and you know damn well you would not be happy with switch as your only platform. Anyway i'm bored with this topic but my point was i imagine a core gamer would care about playing the biggest games by the biggest developers with out the games having horrible performance and looking like mud, and since all the online and message boards go crazy for AAA games and they all the hype i thought most core gamers would be bothered but you guys proved me wrong. 

Sorry, even with that: you claimed a core gamer cannot be happy with Switch alone. I brought CRPGs as an example. Let's say an core gamer that is specifically interested in CRPGs. On Switch they can play: Pathfinder: Wrath of the Righteous, Pilalrs of Eternity, Dinity Original Sin 2, Baldur's Gate, Baldur's Gate II, Neverwinter Nights, Planescape: Torment, Icewind Dale and Wasteland 2. That are literally thousands of hours playtime right there. At five hours a week you look at 10 years. With one genre of core games alone and assuming that core gamer never ventures outside their niche.

But your definition (or that of the NPD) of five hours a week - that means people that exclusively play Fortnite fit the definition. Fortnite is readily available on Switch. That definition fits players exclusively playing Minecraft. Again available on Switch. Monster Hunter players - fine on Switch.

Throughout the whole thread you argue a core gamer that isn't liking Nintendo games could never be satisfied with Switch alone. Now you deliver a definition of core gamer, which actually says that millions of core gamers exclusively play on Switch. You argue in that thread that core gamers need access to all AAA games in best graphics, but this definition actually includes a majority of players who couldn't care less.

That definition means Animal Crossing players are core, Mario Kart players are core, by the way.

You just gave a definition of core gamer wit playing five hours a week. Most of the people falling in this category don't care about the biggest games, most of them play one game exclusively. Most of them don't care about horrible performance and games looking like mud. And most of them don't frequent online message boards. Online message boards are for a very small minority of gamers, many of them are weirdos that are not actually playing that much but instead spend hours looking at screenshots counting blades of  grass of a scene in a game on different platforms, just to make stupid arguments on said message boards. The majority of players, and yeah especially a group as broad as players playing five hours a week couldn't care less.