> 81) Many cameras now do have a GPS receiver as well - they aren't "inaccurate" as you attempt to imply. All GPS need some time to get a "lock" to enough satellites, how quick depends if they have updated ephemeris or not. Once they get signal from enough satellites, the position is accurate enough. Anyway, I'm afraid the GPS position is often more useful to data slurpers than to the user...
Speak for yourself. A friend uploads his photos to some google service and can use the GPS information for queries. E.g. "show me photos when I was at place X". And social media (Facebook, Instagram, etc) is now often able to read the GPS tags and automatically tag your location to the nearest city/venue.
And personally, I spend a lot of time walking around and taking photos of street art; this weekend I buzzed Nottingham, Leicester and Peterborough and took over 500 photos across a dozen different sites. Which were usually in urban areas and often in a fairly dense maze of roads.
GPS tagging is invaluable for me, because it means I can identify exactly where I was when I took the photo - and in turn, I use it to build maps of the art I've found.
It's not uncommon (e.g. in Paris or Berlin) for me to be walking for 10-12 hours and take a few thousand photos, per day.
So waiting for a DSLR to fire up it's GPS receiver and waiting until it has an accurate lock (as compared to the faster lock-on for a phone's A-GPS) simply isn't feasible - and given that I'm walking up to 30 miles along the way, the extra weight of the DSLR isn't particularly appreciated, either, nor is the fact that it potentially increases the risk of a mugging - graffiti isn't usually found in the most salubrious locations, after all.
You can argue that I've got something of a niche use-case, and I wouldn't argue too much about it. But the use-case for my friend is much more common, and will increasingly become more so as people use their mobile phones for events involving family and friends.
As to the social media tagging; I guess that depends on whether you count it as "data slurping" or not. Certainly, if I see something interesting in someone's feed, it's always useful having a hint as to where I need to go to see it in person!
Regarding your point 2): I've happily printed photos from my smartphone at A3, though again, I'll concede that I'm mostly taking photos of relatively unchallenging subjects - they're photos of pictures painted onto walls ;)
(I'd actually be more than happy to upload some "raw" examples somewhere for quality critiquing!)
And many smartphones can take photos in RAW these days (though again, quality vs a DSLR will be relatively limited).
And if comms-silence is important, you can turn airplane mode on for a smartphone - or conversely, call for help! Because as I noted above, a DSLR is much heavier and much tougher to conceal - and arguably makes you a more obvious target for mugging.
Editing on a camera vs editing on a phone (and/or filtering thereof): horses for courses.
Screen sizes: at a glance on jessops.com, I can't see anything larger than a 3.2" screen. And I take the point about tiltable/rotatable displays, though equally, I'd note that my smartphone is far lighter and smaller than a DSLR, so can be held at awkward angles far more easily.
Cameras and DNLA/wifi: as with "smart" TVs, I've found the actual implementation of these to be highly hit and miss. I've certainly strugged to get wifi working on the Sony HX1 I own on any of my more recent smartphones, though IIRC, the app for my Panasonic Lumix was fairly capable. Then there's the fact that the software built into these cameras doesn't tend to be upgradable or configurable.
As to camera batteries: as per above, I can shoot several thousand photos in a day, and I took my new Samsung S10+ out for a spin this weekend. At my first stop, I took around 300 photos in about 30 minutes. And that cost me about 15% of the phone's charge. And if I'd done that while on holiday, I would have plugged in a USB battery pack (Anker for the win!) and continued to walk *and* take photos while it topped itself up. Instead, I went back to the car, plugged it in, fired up google maps and drove to the next location :)
In the end, as I've said before, DSLRs unarguably have an edge on quality. But smartphones are Good Enough for most people's use cases, and far easier to lug about!