My point wasn't that no hardcore gamers own a Switch. It's that hardcore gamers isn't the Switch's target demographic nor it's biggest audience. But you're looking at things too black and white in thinking that logically means I'm saying it's not something anything hardcore gamers would like; which isn't the case.
Like with any product that sells millions, there will be people that fall outside of the target demographic. That doesn't mean there isn't a target demographic or that the company are targeting the wrong group. It just means that either the person is an edge case or the product is versatile enough to be enjoyed by more than just the target audience. In the Switch's case, it's the latter.
In fact that's the point I've been making all along about the genius of the device. Nintendo have not only built a console that captures the imagination of a largely forgotten market, but they've done so in a way that has appeal beyond that market too.
But to be clear, this wasn't an accident on Nintendo's part. They've always marketed their machines as family systems (ie accessible gaming to be shared). That's why their 3rd generation console was called the Famicom in Japan (short for Family Computer). It's why the NES was styled the way it was (a grey box like a VCR so it looked at home in the families TV cabinet rather than looking like a kids toy). It's why the N64 was the first console to have 4 ports built in (ie without needing additional hardware). Why the Wii went down the gimmicky route when everyone else was making consoles for older kids and adults. And why Nintendo's IP is almost always cute and cartoony.