So why do countries that are famous for their robust social safety nets and government-funded secondary education systems routinely trounce the US in economic stability and quality of life?
Having lived in two of these countries, Canada especially long, I can say with a great deal of confidence that these numbers are greatly exaggerated Canada especially lives in perpetual recession, with massive unemployment which numbers are skewed due to the fact that they don't include those who have abandoned employment in place of living on the dole. Ontario in-particular was a horrible place to live with areas like Welland and Hamilton being blights where the unemployed live in government housing and free everything, while hard working Canadian citizens are taxed out of existence, especially those trying to make it up in the world. The government abandoned many on the coast both east(Problems with fishing) and west(Exploding crime rates), and the only provinces doing well for themselves are the prairies (Due to a booming oil economy, but damn are the prices high AND Quebec which was until recently run by separatists, not sure if they still are. I heard the Quebecois were nearly wiped out in elections recently.)
As for other choices on the list, Luxemburg and Hong Kong are both single cities with massive governments promoting and using them behind the scenes, their stats are incredibly hard to compare fairly to a massive nation like the United States with the third largest population in the world, and in Singapore Only one government party is ever elected into power, since its reformation. Easy to be stable when you have a lot of money and you're a dictatorship.
I mean lets compare large socialist governments that have similar needs to the US and see how they stack up. Then we can get an honest comparison. Germany, France, England, Russia and Japan. These are the nations you need to make your comparisons to and all of these major powers are lacking when compared to the US. Better yet a lot of the places on these lists you provided are defended by American interests and therefore can afford to pump the vast majority of their military budget into socialist programs.
Socialist systems promote the deterioration of freedom.
In America hardworking people do well, and those who are not suffer. My only issue with America is their lack of respect for those suffering and needing catastrophic care, but the best way to free up resources for them is to kick everyone who doesn't need it out of the system and rework it all to those who don't have a choice in their state of livelihood.