No you don't steel anyting. You go to a guy who has bought the gum, and he somehow clones it and gives you the clone for free. This is not steeling, it sound more like a way to end word hunger.
Why is this vewed as an issue ? Copyright law is clearly law created by and for the corporations. Because real would concepts, such as stealing, do not really apply to the digital word. If you think of , say a movie as bread and say Netflix and a baker, then pirating a movie will be the same as buying a bread from the baker, make infinite copies of it and distribute them freely, it is not the same as stealing bread.
I don't see how is this wrong. Broken buisness models, which did not account for the web and lobbying made copyright what it is today, it's not a law which I feel morally aligned to.
It would be cool if mozilla and google would standatalize the headless API and command line flags as llvm and gcc has done, so you would perform headless cross browser testing.