So what would a "thinking" individual suggest nintendo do?

one soldier downs you say ?  Call the Ambulance !!!!     Wiii U Wiii U Wii U Wii U

at OP

You don't need to say like that, Human hearth is the most unstable thing and it's easy to change, what you need to do, is never again buy a system (PC, Console or every electronic stuff) on it's first day launch or even it's better to wait 1 or 2 years and judge it first.

I did wait, I didn't get my Wii U until November 2013, once it had Pikmin 3, Mario 3D World, and a bunch of third party games I wanted.

Sorry mate. It's been four years and I'm tired. :(

Of the three companies, Nintendo was most on target with showing games that you can play THIS YEAR, or early next year. I would prefer to be told directly what I'm supposed to expect, not be promised the world years in advance only to be disappointed. People are saying "Sony had the best E3 EVER!" but what the heck is actually exclusive? What am I getting from them that I can't get on PC or Wii U? TLG, Uncharted 4, and Dreams are all that looked good to me. 3 titles. For Wii U, I have 15 exclusives already and this fall, we have Star Fox and Super Mario Maker to look forward to, at the very least. Why is that soooo awful? Seriously?

Yes, it's clear they're holding big guns back for NX. Why is THAT a bad thing? Obviously general perception of the Wii U is bad, and having a fresh start would allow them to get better and bigger things out. For all the people saying "I'm done with Nintendo forever", what the heck does PS4 or Xbone offer? I'm so tired of all the samey-samey stuff. Literally, whether you have one or the other or a PC, the stuff you'd miss out on from not having the other is minimal. It's a childish mindset to have and completely ignorant. The Wii U took a year of system updates to really shine, but it's great now as a console. Chill.

Yeah, it's been hard. It's got me confused as well. I won't be upset, but we'll miss you.. :(

Agreed. Same here.

Not everyone has a high end PC and even many who do prefer to game on their couch. 

I'll still be around, I'm going to stick with Wii U until the end, so there's still time to ride the Xenoblade hype train together. :)

With the exception of the Wii U, it's not like Nintendo hasn't had dwindling console sales since the NES.  Literally every generation since Nintendo made the NES has sold less and less and less than it's predecessor, then the Wii happened*. The Wii was the exception, not the rule. Wii U sales reflect a company that has become more and more and more out of touch with the video game market as time went out. If anything they got incredibly lucky with the Wii, and made a whole bunch of decisions that allowed a video game console to become a fad.

*Not counting the Virtual Boy because that makes Nintendo look even worse.

Sure, I'll get a Wii U. One day. Probably used, off some kid's parents for 1/10th what they paid for it and the 8 or so games with it that are worth playing.