Nintendo's success or failure will always be tied to whether the unique experiences it bring to the market has a broad enough appeal. When they do that the third parties get on board. Nintendo's problem last gen was weak hardware appeal for 3rd parties, and a weak audience for the type of games 3rd parties usually make. Their problem this gen is weak software appeal for the wider market and to a lesser extent weak hardware.
Buying ports will do nothing to help because the best versions will always be on PS4 and very occasionally Xb one, and the second best version will be on Xb one.
I can see an argument along the lines of if the multiplats are there, then lack of multiplats won't be a barrier to buying. Trouble is Nintendo still needs the exclusive content that will make people want to buy. And it doesn't have that.
“The fundamental cause of the trouble is that in the modern world the stupid are cocksure while the intelligent are full of doubt.” - Bertrand Russell
"When the power of love overcomes the love of power, the world will know peace."
Jimi Hendrix
