There is a fine line between being provocative and trollish.You shouldn't count Wii as part of the same gaming market as the conventional consoles. It reached a different audience who then didn't care to carry on with subsequent consoles*. Compare this gen to PS3+XB360, PS2+GC+XB+DC, PS1+Saturn+N64(+other little players).
* One could possible dedcut EyeToy and Kinect sales somewhat from previous console generations for other non-console fads that didn't grow the market.
You're being trollish here. In real terms I guess Switch can be counted somewhat twice, independently, so the total home console market will be PS+XB+Switch and the total handheld market will be Switch and nothing else because there are no other handhelds. However, utilisation figures may one day emerge that show if Switch is used connected to a TV much or not, which could be used to weight the total console sales.
To me it is crystal clear - any hardware+software combo that adheres to the console business model is "a console".
Its sales depend on how attractive that package is to consumers. Arbitrarily removing different parts of that whole in a sales discussion because it doesn't fit the narrative on hand is disingenious and serves to obfuscate the picture. Consumers are not a given set either, some drop out of consoles over time, some come in, the overall business will depend on both the merits of its own value proposal, and overall consumer trends. Depending on what you discuss, separating this whole into categories may or may not be useful, but I'll submit that it all too often clearly is done to fit an agenda or particular statements about the console business as a whole.
Regarding the Switch specifically, it will never fit the handheld-stationary separation of the console market. It is expressedly designed to adress both usage patterns! Someone who primarily uses it on the go benefit from that the few times they sit down to play Mario Kart/ARMS/Bomberman/whatever in front of a big screen. Someone who primarily uses it connected to the TV benefits the few times they travel by plane or train, or simply bring that particular super addictive game with them to bed. It is a hybrid even to the 95%-ers and by design, so allocating its sales volume to either stationary or portable is a fallacy either way. One which I think we'll see a lot of.