It's about needless overreach. None of those reasons you listed justify constellations of 10k+ satellites in LEO just for internet access. That is an unmitigated global disaster in the making. Solutions to all of that exist. Radios work for comms in disasters right now and have for decades. Governments should simply run fiber to every small town and village. It's far cheaper. If someone has an off-grid house, they know what they're getting into. Remote research installations are a niche case and simply do not justify a global satellite network on their own, not when all the other cases listed fail to justify it as well. If they really need to upload data from deep afield, they could always put up a few dedicated satellites just for their own use.
If somebody wants to travel to or live and work in a remote area, that also doesn't justify such a network. They're doing that to get away, not to stay connected. They are taking the risks that come with it.
Improving safety is the never-ending cry of a nanny state. The world is already spectacularly safe -- deadly though it still is. Most of the things that used to eat us are so long dead that we have forgotten to be cautious in the wilderness.
And yeah, after seeing idiot losers trashing places like Yellowstone, I am absolutely fine when they get themselves killed in the middle of nowhere. I'm happier if they get rescued and learn from the experience, but we don't need to toy with Kessler Syndrome to incrementally improve their odds.