>3 months ago I would have agreed but they have announced that for their next LTS 18.04 they are dropping unity in favor of Gnome3.

No, it's still true. They didn't want to drop Unity at all; they did it because they were forced to. Didn't you read Mark Shuttleworth's blog postings about it? He was clearly unhappy about things. They gave up on Unity and Mir because they weren't working out in the market and it was costing them too much money to pursue that direction. If Mark had his way, Unity would be the most popular Linux DE.

>I use KDE and it sucks when I click something and it tries to open nautilus and clobbers my wallpaper.

Huh? I don't know what to say to this. Nautilus is Gnome software, not KDE. Why would KDE try to open Nautilus for anything, unless you've explicitly set it up that way? Now if that's what you've done because you like Nautilus, the problem is probably with the Gnome/Gtk devs. As I said before, they're infamous for not being amenable to cross-toolkit efforts. I would encourage you to ask them for their advice on this problem; they'll probably tell you "switch to Gnome3". :-/ I use KDE too, and personally I avoid GTK software if I can help it.

>A "killall nautilus" later and everything is fine, but its annoying and a non-power user couldn't do this.

I agree entirely. It's garbage, and it shouldn't be this way. The Gnome devs are entirely to blame for this mess, along with all the distros that push Gnome3. They don't even want you to use a wallpaper with Gnome3; Jon McCann said so some time ago, saying that customization (even wallpapers) is bad because it makes different Gnome installations different.

>It's not just Linux UIs Every UI is advancing; my friends and family are constantly asking me for help with win10 or whatever crazy mac/iOS/android shit they dig up.

Oh I entirely agree; all the UI people across the industry have gone collectively nuts. But I expect better from FOSS, for multiple reasons: 1) FOSS isn't for-profit (well, I guess Red Hat is, maybe that's part of the problem), so they shouldn't need to push unnecessary churn to justify pushing customers to "upgrade", and 2) FOSS is usually very resource-limited compared to commercial software, so unnecessary churn is a waste of developer time that's better spent fixing bugs, improving docs, making things more stable, etc. If I want to use the latest fancy BS, it would stand to reason that I'd go for commercial proprietary SW, because those vendors are all in favor of making "new" shiny stuff to get me to spend more money to do the same thing. The same shouldn't also be true of FOSS, but for some reason it seems to be.

>I also don't mind this because I like learning this stuff too

I don't. I consider it all an unnecessary waste, and I really don't like these new UIs at all. Thankfully I'm still stuck on Win7 at work for the moment, and minimize my use of Windows whenever possible as I do most of my work in a Linux VM (and don't use it at home at all), and I never even see any Macs up close. I put up with Android because it's the best of 2 bad choices, but also IMO it's not that bad: it's a touch UI designed for a handheld touchscreen device and it's OK at that, unlike PC stuff that they seem to be trying to tablet-ify.

>How do you keep power users and people on the cutting edge happy without losing the technophobic grandparents and those slow to learn?

Whatever it is, the answer isn't trying to tablet-ify PCs, or using garish and nauseating color schemes. Everyone was doing just fine with the WinXp-7 style UI for the most part, and why do we care about grandparents? Today's grandparents were using Win95 and XP, so they're perfectly used to that kind of UI. Grandparents today are not starting to use computers for the first time; that was 10-20 years ago. Anyone left now who isn't familiar with PCs to some extent isn't going to be alive for very long, and isn't interested in learning PCs now. And most older people with simple needs would be perfectly happy with an iPad or other tablet anyway, which is why the PC market is no longer growing.