Not everything that ever lived is as adapted as the camel and not in as many ways. it has huge fat stores so it can go a long time between meals. It can go a long time without even drinking. It has for thick enough it won't sunburn but thin enough it won't overheat easily. They have a third, translucent eyelid that opens to the side like something you might see on a reptile, but they still have the two main lashed eyelids like most mammals. They have a long, strong swatting tail. Their feet, unlike a horse or goat, are not hooved. They have a split foot with webbing in the middle that resists sinking in sand or soft soil. They're able to drink brackish or even salt water. They can eat stone fruits like dates with the stone. They'll eat cactus with the spines because their mouths are so tough. They eat fish, seeds, grains, and all sorts of things. They can eat foods far too salty for other animals and will even eat bones. Arabian camels will travel tens of kilometers a day in the wild to forage, in conditions many animals couldn't even survive, but can go two weeks between meals when they must.
Saying they are no more complex and adapted than any other organism sells them far short. Yet they're more stubborn than a mule, somewhat slower than a horse, they smell worse than either, and they'll spit on a person like a llama. They've been known to bite. Their shape is not is amenable to riding although they are used as mounts. So there are things one might really want to change before spending a lot of time with one.
I'll agree that comparing to any other organism is going too far.
But if we focus on vertebrates, they are all so very very complex and adapted. Everything you've listed for a camel is at best a cherry on top. All other vertebrates are within a couple percent, and many of them have feature lists just as long.
