A lot of typical Nintendo mindset here. Like if playing safe without taking any risks were the only way to go.
Everyone would shit themselves if a good 3D Pokemon adventure came to consoles.
Pokemon is not a success because you can bring your handheld anywhere, it's because the combat is fun, and catch'em all a challenge, and the overall gameplay is addictive.
The portability was always a plus, but not the core.
'Pokemon is for handhelds' is just a bad argument.
You can have all of this in console, but better in every aspect. You could still interchange pokemon with friends and battle online, have coop adventures, everything in a 100x immersive maps.
There's absolutely no logical reason to not want a console Pokemon if you are a Pokemon fan.