Populations of humpback whales (Megaptera novaeangliae) were seriously depleted by commercialwhaling but have been protected in most areas for the last 50 years, and most populations are growing.
Australia's commissioner Donna Petrochenko, for example, was as forthright as her populace would demand in declaring that "Australia is resolutely opposed to commercialwhaling in any form" and "strongly supports the moratorium".
Rapacious and uncontrolled commercialwhaling (most notably by Britain and America in the 18th and 19th centuries) did indeed drive many species, such as the right whale and the sperm whale, close to extinction.
In reality, pollution, merchant shipping and commercial fishing all pose far greater threats to the world's whale populations than any likely commercial-whaling industry might.