I think that homebrew is an important part of owning a console, personally. Sometimes a good scene (or the start of one) is why I buy a console in the first place. Certainly true of the Wii U and Vita.
Because it always comes down to wanting to do things the console is capable of - some of it hidden away by the people who developed it - but not being able to. In my case the main use always seems to come back to emulating old games consoles so you can combine new/current titles on that platform with the retro favourites, so for example I have Sonic Mania which made me want to play Sonic 3 & Knuckles (I was hoping it might be an easter egg actually) but there's no way for me to do that on the Switch currently so I had to dust off my firmware 3.60 Vita, bung an updated copy of RetroArch on there and play that way because surprise surprise there's no Virtual Console service on the Switch, nor does it look like we're getting one for a while. And even when we get one it's nearly guaranteed that some titles will never reach it due to whatever copyright nonsense stops it. I don't see why original games I own/owned legit copies of on original platforms like the SNES/Genesis shouldn't be possible on the Switch.
And yes we all know about the awesome little browser exploit that allowed YouTube until 3.0.0 dropped and cheated us out of our fun.
I want the Switch to be more than it is. I own a load of retail games on it, I don't think it's too much to ask to get classic game emulation, basic browser support and Netflix/YouTube/Amazon Video apps on it. The not-so-popular Wii U has all that, granted it's been out a while so it makes sense that it would, but that's a console which sold less than 14 million in the nearly 5 years it was on the market. The Switch has sold nearly 5 million based on 3 month old figures from Wikipedia, so it's not hard to speculate it's closer to 7 or 8 million now. And that's been on the market a mere 7 months. So there's impetus both for Nintendo to bring it up to speed, make it more useful to garner more sales and user satisfaction, and for any hackers looking to get quality homebrews on the thing. Not too much to ask... in my case I've spent about £750 for all the games, two sets of Joy-Cons, carry case etc, that'll probably hit four figures spent by the end of the year after we consider FIFA 18, Super Mario Odyssey & Skyrim. Whereas the Wii U I've spent about £250 on does way more, still, than the Switch does.
So yeah. THAT'S my refutation for anyone who questions the point of homebrew or insists it's only for "teh piracyz" or whatever. I just want more value for money, and to build a huge library of games so the Switch realises it's full potential. I don't care about copyright laws for 20+ year old games I enjoyed as a kid and like to revisit now from time to time that I already paid for, I just want them on my Switch because there's no legal paid way to do it yet and probably won't be for a while. I don't see that as piracy at all, personally. I see it as Fair Use.