See? This is why we need real critical-thinking training in education, as early as possible. Well, no, this isn't really why; things like 'still having Democracies in the world for our kids to grow up in' are far more important reasons:
Your argument is a simple basic fallacy, it reads: "Gasoline is to a Car as a Charger is to an iPhone." The problem is that Gasoline is a consumable, like Electricity. In other words this would be more accurate; "Gasoline is to a Car as Electricity is to an iPhone" (a subtle but key difference.) To stick with your car analogy; this is more like Apple not including the alternator; a necessary component for the functioning of the device as it charges your car's battery. Or if you have to stick specifically with the Gas analogy, it's like Ford (for example) selling you a car with a gas-tank, but you have to pay extra for the fuel filler neck assembly, because it's assumed you'll already have fuel filler neck assembly for a Ford. I mean, how could you not? It's silly to include one!
Let's not pretend that this is anything other than Apple being able to make a tiny bit more on each iPhone while lying that it is for some noble purpos