Everywhere is primarily Sony territory.

UK Remains also a strange country by leaving the EU. So also their charts.

That's not really true by any metric.

North America is a Nintendo plurality.
Japan is a Nintendo majority.
Even the UK is just a Sony plurality, because Xbox does so well there.

"Sony territory" really only applies to mainland Europe and RoW.

I'm talking home consoles. In that case, only Japan and the US are really debateable.

"only"

Now with the Switch being a hybrid there is no point contesting this. Wii U did not sell badly in america and japan because Sony, it was because marketing and stupid decisions. If we are talking potential, Nintendo is the only company capable of owning an entire region because Xbox(yes even the 1) sells well across the pondIt doesnt matter if you clarify home console because A ) home consoles matter little to Japan and B) Switch is both. 

Plus in america the potential was alwaays for N and S to be head to head. America is the market where all 3 are potentially equal in primary value.

-Agent Cooper

Now I'm really curious as to what the worldwide sales for Crash Bandicoot are.

Those are pretty big exceptions to your statement. Japan and the United States are the two largest video game markets, even if you just look at home consoles. Together, they represent around 45% of the entire world's console market.

North America hasn't been close to being a Nintendo plurality in recent years, they're doing it so far this year but that could change and I wouldn't look at just a few months when determing who's territory is who's. (VGC Figures used below.)

The past three years USA has been a Sony Plurality.

2016 - Nintendo Systems: 2.85m , Microsoft Systems: 4.98m , Sony Systems: 5.32m
2015 - Nintendo Systems: 3.87m , Microsoft Systems: 5.47m , Sony Systems: 6.18m
2014 - Nintendo Systems: 4.52m , Microsoft Systems: 5.75m , Sony Systems: 5.8m

2013 was the last time Nintendo were on top in USA, back when Wii/DS sales still had an impact.

Japan is a Nintendo Majority though, with the exception of 2016 where Sony was the majority.

20k in its second week? Which is more than Splatoon's FW? How is that not well?

North America has historically been a Nintendo plurality, and in the present they are a Nintendo plurality. Those three years you listed are actually some of the worst years Nintendo has ever had in the United States, with 2016 being the absolute worst year since they started in 1985. Nintendo doesn't have a plurality only when they release extremely unappealing hardware like the 3DS and Wii U.

I wouldn't be surprised if the only years Sony has ever won in the US were 2016, 2015, 2014, 2005, and 2001. They certainly lost from 2006 to 2013 thanks to the Wii and DS, and they also lost from 1995 to 2000 thanks to the Game Boy. Even the sixth generation likely went to Nintendo for the most part because of the Game Boy Advance, which did incredibly well in North America.