If exclusives sell consoles, how come the Wii U failed? Also, why are few youtubers saying exclusives sell Switchs/PS4s but not Xbox Ones?

[Ashadelo]

The biggest problem with the WiiU was the controller. It was ugly, bulky and looked nothing like a standard controller. Just looking at the console makes you not want to play it. WiiU had amazing gems, throughout its short life. Sure, it might have lacked a lot of third party games towards the second half of its life and that greatly contributed to its failure. But it still had a few third party games that really stood out.

However, the number one failing feature the WiiU had was its controller. Its the biggest controller by far that any console has ever had. It looked more like a Childs vtech iPad ripoff than a controller. Finally, it's just not as comfortable as any of Nintendo's previous consolers.

NES - light and smaller
SNES - light and more comfortable
N64 - weird, but extremely comfortable.
GCN - weird but light
Wii - light and comfortable
WiiU - ugly, looks like a childs iPad
Switch, light, extremely comfortable.

The WiiU is Nintendos Virtual Boy, ugly, uncomfortable, and because sales never really took off Nintendo cut its life short.