Except Wii U has made money as well which makes that point null and void, ironic that the non traditional routes have made them more money than the traditional route that you're calling for. Nintendo understands that this is the only route they can take to be successful it's you who doesn't understand, the traditional route suits bigger companies like MS and Sony far more than a dedicated gaming company, like in any sports the is more than one way to succeed if you can't play attacking football like Barcelona you can be strategic like Athletical Madrid, if the competition has a big advantage with one strategy you use another approach.

Third parties in the east get along fine with Nintendo and because MS have no presence there and the console market is to small to support only one platform they'd need another platform to release games on that's why NX would be X1 power. You don't get that the market is always moving to the point that developers have to change approach as well, before HD developers mainly stuck to one platform as it was cheaper and easier then development costs spike which is why the went multiplatform, these costs keep going up and the market keeps changing.

The only problem is unlike the GC and the Wii U, Nintendo won't have those handheld sales to subsidize their income, since the NX is rumored to be a combo of the two markets.  So, if the NX is not a success, where will Nintendo be making its money? 

Personally, I don't see an underpowered Wii U 2, only now with a seemingly worse controller, being a big success.  Sure, it seems the controller may have the ability to go mobile, unlike the Wii U, but its lack of physical buttons is going to be a big turn off to core fans, the type of customer that are mostly left in the console gaming market.

Wii u isn't making money for Nintendo. That is why Nintendo is leaving this console generation fast as possible. Sorry, but I hate to inform you on this. Japanese developers are not doing shit for Nintendo's console because they are going to mobile side of things. Look how badly most 3rd party Japanese games sell. Thats why we are seeing less and less Japanese games. Sorry, but Nintendo dugged it's grave yet again. 

Wii U is making money and has been for a while that's not even debatable right now, the high attach rate alone rakes in a lot of money.

Funny because japanese developers have made the 3DS the top reigning platform in Japan.

It's almost certainly a capactive screen like most smartphones/tablets, not resistive like the DS/Wii U are.