keesje, I guess its hard to tell if you're just trolling or if its willful ignorance, but you clearly don't know what you're talking about... yet you keep talking...
Hong Kong and the Falklands are not the same. Such things as 99 year leases, treaties, negotiations, agreements and lack of overt hostility or invasion are probably the key differences... I don't know - they seem quite important differences to me?
A statement about the economy from the CIA World Factbook:
Economy - overview:
The economy was formerly based on agriculture, mainly sheep farming but fishing and tourism currently comprise the bulk of economic activity. In 1987, the government began selling fishing licenses to foreign trawlers operating within the Falkland Islands' exclusive fishing zone. These license fees net more than $40 million per year, which help support the island's health, education, and welfare system. The waters around the Falkland Islands are known for their squid, which account for around 75% of the annual 200,000 ton fish catch. Dairy farming supports domestic consumption; crops furnish winter fodder. Foreign exchange earnings come from shipments of high-grade wool to the UK and from the sale of postage stamps and coins. In 2001, the government purchased 100 reindeer with the intent to increase the number to 10,000 over the following 20 years so that Falkland could export venison to Scandinavia and Chile. Tourism, especially eco-tourism, is increasing rapidly, with about 69,000 visitors in 2009. The British military presence also provides a sizeable economic boost. The islands are now self-financing except for defense. In 1993 the British Geological Survey announced a 200-mile oil exploration zone around the islands, and early seismic surveys suggest substantial reserves capable of producing 500,000 barrels per day. Political tensions between the UK and Argentina remain high following the start of oil drilling activities in the waters. In September 2011, a British exploration firm announced that it plans to commence oil production in 2016.
You seem to be working off a stereotyped 1970's blue-and-white tinted view of the Falklands. The Argentine invaders truly believed that they were a liberating army and they'd be welcomed by the population with open arms. When they realised their mistake, it came as a bit of a shock, and the reality of a hostile population and a bleak windswept "wasteland" went on to affect morale - they no longer knew what they were fighting for. I'd suggest you visit, then you can find out for yourself.