I disagree. The opposite is ridiculously pushed from what I can tell of the online-manifestation of western culture. Rather, what I'd argue is the elephant in the room, is that it doesn't matter which of the two is the right answer. We should take responsibility for doing the right thing, regardless if our nature or our surroundings made us a certain way.
Barring certain extreme cases, of course, such as mental illness and such.
I wasn't talking about which one is right. It's just an interesting feature of American culture. The positive side is that people are proud of their successes, they are encouraged, every kid is told they can one day become President etc (obviously exaggerated, but the Tall Poppy Syndrome is not characteristic of the US).
The stereotypical US things, like no universal health care, no tuition-free education, lax gun laws, mass incarceration, death penalty etc. are also a manifestation of this attitude.
You must take care of yourself, you must protect yourself, if you make it then great! If you become a criminal, you become subhuman and can be executed and treated brutally by the police. If you become dirt poor, that's your fault, you can become homeless, there's no welfare.
Now again, I'm exaggerating somewhat to emphasize what I mean. And yes I also know the historical origins of this mentality, and as I said, there are also positive consequences, like most major innovations and scientific discoveries coming from the US, the huge dynamic market where anyone can start a new company with manageable levels of bureaucracy (compared to most European countries) etc.
Barring certain extreme cases, of course, such as mental illness and such.