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

[Miyamotoo]

First, exclusive games are far more important for Nintendo platform than they are for PS/Xbox consoles, espacily today when 3rd party are more stronger than ever,
look on best selling PS4/XB1 games proves that.

Talking about Wii U, problem with Wii U is that start receiving great and big exclusive system seller game when was already too late and console already considered for fail, first big exclusive game was SM3DW and come out technically at start Wii Us second year, for comparison in some time period Switch already had Zelda BotW, MK8D, Splatoon 2 and Mario Odyssey. If Wii U on launch or its in first year had games like Mario Kart 8, Mario Maker and Splatoon, it would sold better, but its not like games were only Wii Us problem, there was also terrible branding/naming, marketing, appealing, pricing, timing..