You are confused.
You are stupid.
You are giving socialism the credit for which the hard work of capitalism has paid for.
Lmfao. Right buddy. When socialism fails socialism is responsible, and when socialism succeeds capitalism is responsible. Gotcha, my little yankie doodle dickhead. Only problem is that you're an obnoxiously stupid idiot.
European high standards of living are not the result of socialism but rather free market activity.
Demonstrably false. America does not share the same standards of living and it has significantly more "free market activity". The single common denominator linking all the countries with the highest standards of living are the socialist programs they run. Perhaps you are the one who is confused, and have forgotten that in 2008 "free market activity" caused 1.2 million American families to lose their homes and tens of millions to lose their jobs. Did you perhaps sleep through that? Or were you busy jacking off to Ronald Reagan speeches from the 1980s?
Nobody is going work hard or achieve and make anything better if their product of their labor is confiscated.
You have it literally backwards because you're obviously mentally retarded. When you work for an employer in a capitalist society, the profit your labour generates goes to him, and you are compensated in the form of a small percentage of that profit (i.e. a wage). In a socialist society, you get to keep all of the profit your labour generates because the entire point of socialism is to emancipate the working class.
You should honestly recognise that you're extremely stupid. It will help you out in the long run.