simply put, the Wii should not have even been a console. it was originally planned as a Gamecube add-on but was made into its own console after the Gamecube was shown to be selling poorly. it had underpowered hardware and a huge emphasis on motion controls, and companies were more in favor of using the Xbox 360 and PS3 to make games for due the extra power and more traditional controls. this caused Nintendo to try shifting their focus onto casual markets which did not turn out well, and even today despite the Switch being their most powerful console to date and a marketing success, it still is vastly underpowered compared to other consoles. after the Wii, they never really recovered