Is the Greek debt crisis proof that with socialism you eventually run out of other people's money?

thatcher was a socialist so she should know, she conned the british for a decade while increasing taxes , increasing social security payouts, increasing government spending and even signed up to the socialist european common market and later admitted she hadn't read the treaty, she sold off state owned assets so quickly that she took 60 Billion UK pounds($110 billion equivalent to $700billion today) out of the economy in less than two years and caused a recession there, all those assets are today foreign owned making money for other european countries, she also closed hundreds of england's best schools and enforced the comprehensive education system there which has destroyed british educational standards , they now rank behind singapore and malaysia in education, she sold the oil and gas reserves of the north sea to other countries leaving england with a shortage just so she could spend more on government social programs, every socialist regime there has ever been depended on debt and deficit spending to hide its true cost, congress has done the same for 50 years