They don't. They can land on planets. Getting supplies to refuel them might be difficult, but less so than the capital ships.It wasn't meant to. It was addressing your assumption that since starfighters have hyperdrives, they wouldn't need carrier ships.
The rebel alliance isn't known for caring about the physical comfort of its personal- they set up a secret base on Hoth. Build it in the temperate regions? Bah! Limbs are for sissies- frostbite will keep the men on their toes!Which doesn't say beans about their range without knowing the actual DISTANCES traveled. As fighters apparently can have 6 figure LY ranges that point is obviously wrong but that doesn't change the fact that fighter cockpits are cramped and uncomfortable so you don't want to leave your pilots in them any longer than necessary.
Seriously, they had a whole planet and they put it in a place where several hours exposure leads to death.