Yet it is factually almost correct. Obviously its unhealthy to drop everything on circumstances and I understand what you are trying to say, however research shows: a person's home country explains two-thirds of the variation of income differences between all people in the world. This means where you are born is more important for how poor or rich you are than everything else put together.

This is another variation on the privilege discussion. It is okay to observe that some parts of the population are more privileged than others based purely on circumstance, but it is inappropriate to level the accusation of being privileged at individuals. And along the same lines, it is inappropriate for individuals who are disadvantaged to dwell on their circumstances and use that as an excuse to give up. Everyone can improve with effort, and I'd wager that the vast majority of people can improve enough to have a perfectly happy life if they try.

true, meant "most successful people work hard", to be more precise