Don't be so triggered. The NES had over 90% marketshare and invented a lot of the franchises you are playing today. Yes, that was their glory years. Even the Wii era didn't compare.
I mean, we were eating fucking Nintendo CEREAL back then... cereal.
You completely missed the point.
Things like the Zapper, R.O.B. & Tetris didnt stop them from making games like Super Mario, Zelda or Metroid.
Things like Nintendogs, Brain Age & Wii Fit did not stop them from making games like Mario Galaxy, Twilight Princess & Metroid Prime 3.
Things like 1 2 Switch & Labo are not stopping them from making games like Breath of the Wild, Mario Odyssey or Xenoblade 2.
Diversity is important for any platform and every successful platform has had a mix of harcore, casual & casual-core software.
I feel like I have had this discussion one hundred times over the last decade. Seriously, it's deja vu over and over again. The difference between NES-Gamecube was that their gimmicks were in the background. They didn't try to stick them into the forefront. Labo has been pushed and pimped out over the internet and in the Switch "news" section nonstop. Seriously. That's all Nintendo has been fucking talking about.
Between the two of us, only one (me) has been there since the start. You weren't even in kindergarten when the N64 launched. That is not an insult, after all, we can't help when we were born but it does (and should) make you pause for a second to think about things from a different perspective. I was in third grade when I got my NES, which was... I think 1988. I saw all of this from the beginning and I can tell you that the Nintendo of that era was different... vastly so.
I think the Switch is as close to that spirit as we've gotten since the Wii came along and made our grandparents waggle around the living room like fucking idiots. It has the capability and the marketing to pull it off. But if Nintendo keeps up this Labo type stuff, that will all be for naught. The reason the Switch is selling so well is because of CORE games like BOTW. It's not because of cardboard and casuals.