This argument is entertaining lol.
It's true that Switch is both a portable and a home console, which means that sales can no longer be compared apples-to-apples. Its achievement is great, but you must temper it with the fact that it takes Nintendo's portable and console market and rolls them into one device.
This fact is an annoyance to many people who still want to compare raw numbers between game systems, because we love black-and-white examples of facts in the great console war. That is why so many obsess over specs. But as with specs, there's now "more to the story" with sales numbers too. The horror! All we want is simple, emprical proof of the superiority of one system over another, and now we have to parse it with crap like critical thinking and understanding what the numbers mean. OH NO!
Come on guys. A phone is just that, a telephone, that also has gaming and multimedia capabilities.
A game console is a device designed primarily to play games, with a concern for performance, input devices and software. Sure it may also have some multimedia capabilities too, like Youtube. Ouya had Android apps like Youtube, it was still designed and marketed for gaming. It included a controller and had a gaming-centric storefront. The fact that its only exclusive I cared about was Towerfall doesn't change this.
Yes, you can also plug your laptop into a TV to "make your own game console". But it's not a game console, it's a computer that can take on the role of a console if you configure it to do so.
Switch is, without a doubt, a home console AND a portable. It was implicitly designed as such. The dock, cables and controller to play on TV come in the box and it's not meant as a secondary or unusual feature (such as, say, Super Game Boy/Game Boy Player). It accepts game cartridges and has a storefront that is entirely gaming focused despite a few apps like Youtube and Hulu.
Nobody goes out to get a Playstation and says "I want to get a multimedia device/BluRay player, but just to play games on it." One might say "I want to get a game console, but just for multimedia/bluray". We know it's a GAME SYSTEM that took on these extra functions.
A home game console is designed with a focus on gaming, offers games to play, provides an integrated controller solution, and connects to the TV with what's included in the box, not as an add-on/secondary feature. Ouya is a game console, your laptop or fridge isn't.
So is Switch. And it's ALSO a portable. With a brilliant hybrid design. And yes, this muddles all the sales numbers.