The Wii and the Switch? Ask yourself what they did that the others didn't. Neither was a conventional console. The Wii U was. Power matters to say other wise is to ignore a huge part of why technology changes constantly. My point stands, you are just being blind to the fact that the lack of power also contributed to the Wii U's demise. The Wii U did plenty of other things wrong, but pedestrian tech specs in comparison to the PS4 and Xbox One was one its wrongs.
I'm not being blind, quite the opposite I am using historical fact to support truth. The WiiU's lack of power compared to PS4 and X1 is not what caused its lack of popularity, because we know many cases of consoles that succeeded very well with low horsepower.
The whole handheld line proves you wrong. I will go blue in the face if I have to, to repeat this historical truth.
You are free to believe what you will, but you can't ask others to agree with you when you are contradicting facts.
For the record, the WiiU was not a conventional console. In case you forgot, it had 2 screens and a stylus.