So, for instance, software is protected by patents, oil and gas is protected by mineral rights, drugs are protected by patent law, entertainment is protected by IP rights, and so on.
In so far as there is competition, it often arises when the rent-seeking motivates people to disrupt the government protection by making it useless.
In software, people have lived with that since the beginning because it moves so fast. But even in slow moving fields like energy, we see new tech rendering the old protections less important.
I am not saying society has not paid a steep price for rent seeking behavior but that it has been part and parcel of all capitalism forever, and not unique to the American experience.