33 boats carrying 800 people in total, not per boat. It indicates that the Australian Navy was only able to intercept a small proportion of boats, and that most illegal immigrants in Australia enter by air. The reductions were achieved not through interceptions at sea, but through diplomacy. 20,000 people per year by sea (its a guess by the Australians, by definition illegal immigrants disappear into the black economy). 24 people per boat. So about 800 boats a year, hitting mostly the Western and Northern sides of Australia, which are mostly uninhabited. That's about 21,000kms of coastline to protect. Assuming the Australian navy patrolled out to about 200kms, that is about 4.2 million kms, about the size of India. Operation Sovereign Border, at any one time, involved 7 patrol boats, a couple of frigates and a support vessel during the cyclone season. You seriously think they went anywhere near intercepting about 2 boats a day? They intercepted about 1 boat a month. 33 boats is over a 5 year period https://www.sbs.com.au/news/article/operation-sovereign-borders-blocked-33-boats-in-five-years/3jm4g00gp So you have focused on the apparent success of the Royal Australian Navy. You spent the last 10 years of your life thinking they have picked up 20,000 when in fact its just a few hundred, and lots of sailors had jollies.