Khuutra, I see what you're saying. Basically don't burn any bridges, try to build relationships and get good games.
Maybe I'm being a little mean about the whole 3rd party thing.
Here's what gets me about the whole situation: There has never been a faster selling console in video game history. Not since the NES have video game consoles had any real main stream attention. Not only is this the fastest selling console, but the development costs are lower than their HD counterparts.
Also, Nintendo has done a lot to reach out to 3rd parties this generation. They've opened up and showed that they're willing to support them. They've offered Nintendo developers go out and visit and provide insight or any consulting help they may need, offer marketing packages for particularly good games.
And so far what has been the response by the rest of the industry? Ridicule. Doomsaying every single year. Being told that they "don't count" and this generation is about 2nd and 3rd place. Not only have they passed up on good 3rd party games, but they've been agressively passed up, as the OP shows. On top of all that the rest of the industry has actively encouraged a culture of outright hostility towards their most gifted son.
This is probably why I would make a shitty business person. There's only so many times you extend your hand and it gets bit or ignored or shit on before you finally clench a fist.
So in terms of seeing it as an economic war, I'd wage it pretty drastically. I'd hire a few guys to go around to 3rd parties. Charts drawn in with crayons, the occasional backwards "R" for that extra simple look, and say in the most condescending possible tone "since you're far too incompetent to make any worthwhile games for our system, we're only allowing 2 games per year for your entire publishing umbrella, this way you don't taint our reputation any more than you already have"
Then I'd advertise on TV more, become much, much more friendly with retailers, and basically find every single way I could sidestep the industry and find popularity outside their circle.
Then again, my company would also die within a generation :P But at least I'd go out guns blazing!
So, is my idea a horrible, stupid one? Hell yes! Would it be hilarious? Hell yes!
But back to the heart of it: the lack of third party support, especially given how fast Wii is selling, is definitely disturbing and could very well be a sign of how things are just going to be for Nintendo from here on out.