One of the things the Switch needs in order to be succesful is good third party support, but that will not come without third party games being supported upon release. 

One of the reasons that third parties ditched the Wii-U early on was the lack of sales for their Titles. Games like assasins creed 4, and darksiders 2 did very poor in comparison to there playstation and xbox counterparts. Those games and other third parties might have not been the best ports, but they sold badly enough that the console stopped getting future third party support. People can contribute the lack of any kind of third party support after 2013 to the sales of the console, but if third party games sold relatively better compared to the 1st party games then the Wii-U would have preserved it's third party games despite it's small instal base. 

The switch needs to sell third party games in order to keep them after it's initial launch and its first 1-2 years. But it has two glaring issues, which in my mind will cause it to fail in that department. 

The first one being that it will recieve the worst version of the game available on the market. For the Switch owners with one of a PC, pS4, xb1, they will have to chose between a better graphical version of the game, or of having said game on the go for an even worse downgrade. This will already take away sales from a console which needs to prove from the get go that it can sell third party software. 

The second issue is that, typical Nintendo fans do not support third party games. Other then the failure of big third party games on the Wii-U, exclusives like X (Yes i know it's a 1st party title) and Bayonetta 2 didn't sell enough. Yes the sales of both of these games did get hurt by the lack of hardware sales, but when games like Hyrule Warriors can get up to 1.25 million, and when a third release of twilight princess can break 1 million it simply isn't an excuse. Nintendo fans do not like/buy third party titles and that will make the switch quickly lose it's third parties.

With these two issues i forsee the Switch quickly losing third party support relatively quickly, and that is already being portrayed with the lack of a anouncmenets for games like mass effect, red dead redemption 2 and others. 

You're assuming that people won't be interested in having a mobile version of a game in exchange for worse graphics.

If graphics mattered so much, no one would get mario kart 8 with a "garbage" 720p and would instead get a game like Project Cars, right?

Your thread is simply grasping at straws, especially with the second point.

Portability >>>>> 4K for lots of people.

2P as standard should encourage devs to make 2P/multiplayer games. Multiplayer games have a much better chance of success than some cinematic story nonsense.

Take it from the second part of the issue of Nintendo fans not wanting to buy non-Nintendo games, I do want to buy new games, but a lot of the big games do not appeal to me.

I want Kingdom Hearts and would try Overwatch, but I am not interesting in NBA and Skyrim.

Points I've already stressed. Nintendo fans don't want to buy third parties because their expectations are too high, or they simply refuse to buy them. After a year or so, third parties leave. Thats why the Switch already has far less of it.

But people say its a handheld! And handhelds rarely gets console games! XD

But it is quite interesting. Us forum people want third parties on a Nintendo CONSOLE but it just sells badly.

Why some Nintendo fans don't buy 3rd party games; The game already came out on other platforms 6 months ago, The game has missing features or content and or It's simply a lazy and half assed port. If developers won't give a crap about the games they're giving us why should we give a crap about buying their game? I mean its like they expect us to be grateful for getting anything at all.

I think Nintendo's full stable focusing on one device supplemented by indies and low power games can be enough to sustain it long term. It was obvious this will not be a big third party device as soon as it was revealed, but if they play it smart it doesn't have to be.

Yes, I'm sure Nintendo knows this well enough because of what happened with the Wii U, so hopefully they can learn from their mistakes

Very innovative opinion. Never has anyone heard of this possibility before.