You should check your PHB and character sheets. Survival is a skill.
I also note you didn't answer the question about Tiny Hut. Tiny Hut does not skip the process of making a camp, it does not skip the process of hiding a camp (it is a giant opaque orb). All it does, and all the supposed problem is, is that it prevents you from being attacked while you sleep, as long as the enemy isn't in the area when you cast it, or can't dispel magic, or doesn't burrow up from beneath.
Honestly, I have always considered trying to refocus the ranger into the "can we find enough food and water to survive" class to be a mistake. That style of gameplay really falls off at higher levels, and not just because of spells. I mean, think about it, you need to travel from Town A to Town B, if you make the forest so harsh, so inhospitable, so deadly that only a party with a 13th level ranger could even hope to traverse such a deadly environment... then the party is just going to join a merchant caravan and travel along the roads. Because the party might not even HAVE a ranger, and you need to get to Town B, so there are going to be solutions. You need to have extreme threats for high level rangers to tackle, and "find food and water in a forest" isn't even something that normal, everyday people truly struggle with doing. Let alone world-class rangers.