Capitalism is destroying us.

They are different because context matters. The political setting at the time of an event matters. You like to look at single events in isolation from any context. You like to ignore starting points and oversimplify complex issues that have a lot of variables at play. This is one of the reasons why your opinions are the way they are.

There have been socialist dictators (well yeah but socialism inherited nations that were already previously autocratic)
Socialists are thieves who want to print money (well yeah but we have already printed money for a long time)
People died in a famine (well yeah but the principals that led to mismanagement of food are principals we reject)

People should respect US sovereignty (well yeah but we have never respected anyone else's)
Capitalists work hard to get where they are (well yeah but they had significant opportunity)
No one is forced to work (well yeah but they have to work to earn a living)
Smart people start their own companies (well yeah but they need capital for that to be an option