I don't follow the last part of your post. Rights granted by the government are not automatically all property rights. This is infringing on copyright, an artificial monopoly granted by the government to encourage social progress. I agree that's illegal, but it's not removing any items from your possession; it's circumventing the government's attempt to give you a monopoly in duplication, which harms your business prospects, but does not damage any items in your possession. For example, you can still use any software you have.
I mean, if reducing something's value by making it harder to sell is equivalent to destruction of property, then any competition is destruction of property. If I open a bakery next to yours, I'm damaging your bakery. But I think calling it theft or destruction of property would be absurd, even if I broke the law in opening my bakery. If my bakery failed to get the proper permits, or violated zoning laws, I'm competing with you illegally, and might be guilty of some sort of illegal business practices. But I'm not guilty of robbing your bakery in the same way I would be if I smashed in your front window and stole your oven. That's something rather different.
I did not say that it is the same as destruction of property. I said that it is an illegal activity that has the same effect on my life as destruction of property. I'm saying this because some people seem to think that it is ethical to pirate software, or at least nowhere near as bad as destroying property.
There is also a difference in degree in opening a bakery without permits. This doesn't nearly give you as much of an "advantage" as a pirate giving it away for free. I can't think of anything that would give you a comparable advantage with physical goods.
I mean, if reducing something's value by making it harder to sell is equivalent to destruction of property, then any competition is destruction of property. If I open a bakery next to yours, I'm damaging your bakery. But I think calling it theft or destruction of property would be absurd, even if I broke the law in opening my bakery. If my bakery failed to get the proper permits, or violated zoning laws, I'm competing with you illegally, and might be guilty of some sort of illegal business practices. But I'm not guilty of robbing your bakery in the same way I would be if I smashed in your front window and stole your oven. That's something rather different.