I don't know why you are getting downvoted because you're absolutely right. The first three markets named (airlines, telecommunications, health care) are all heavily regulated and the barrier to entries are controlled by the government, not natural market forces.

Monopolies are not all bad. Sometimes a company has a monopoly because they just offer a better product (Amazon, Google) and they shouldn't be punished for that, especially when there's no government intervention that exists to protect them.