Is it really Nintendo's fault that the U is selling poorly?

[iceboy151]

I mean is it really? I just think Nintendo's consoles have became less wanted over the generation. They've sold less consoles each generation. 

(According to VGChartz)

NES - 61.91M                                 

SNES - 49.1M                                  

N64 - 32.93M           

GC - 21.74M                        

Wii - 100.95M (I think everyone has came up with the consensus that this sold mostly to the casuals)                          

Wii U - 5.78M ( Which I think it trending lower than the GC)

Honestly, I don't think advertising or more games will actually help the Wii U sell. People are just getting tired of Nintendo systems, and I don't think they can do anything about it.