>the world is broken and requires fixing, and the world should be fixed before the individual is fixed
This is just fundamentally wrong. The correct level of analysis to fix the world is the individual. If individuals aren't responsible for their actions and doing their best in life then the world will never be fixed. By saying that the world needs to be fixed before individuals you're giving people an excuse to not try their best.
Have you read my post? I've already addressed this, and my point specifically that individuals may not be responsible for what happens to them, but they often are responsible for what happens to others, and that the latter in many cases is a stronger lever than the former (i.e., luck is non-symmetric and not-global). By focusing on the dichotomy between the individual situation, you're forgetting this very important dynamic.
> By saying that the world needs to be fixed before individuals you're giving people an excuse to not try their best.
Frankly, it's the least of my concerns if I am giving someone excuses or not or if someone is trying their best. My concern is whether the world makes sense, is reasonably fair, and if people in it are happy. People trying, or not trying, their best, is only relevant if it is somehow interfering with that goal. At the end of the day I don't think people doing their best is all that relevant because it's not an objective measure and by definition varies between people. This smells of a religious kind of "sacredness", of people trying to create value out of nothing through "virtuous" action and living. This is the kind of thing people turned to when the world was so bad that improving it was impossible, so they turned inwards, so that even in the darkest circumstances they could feel good about themselves. Are you familiar with such philosophy? Is that what you're doing here? Do you think this is a good time and place for that?
If someone's best is a broken bridge, and someone's mediocre is a working bridge, guess which bridge I want? The world doesn't care about my "best" or your "best" and never did and never will. The bridge only works if it is built correctly, it doesn't care if someone did their "best".
We should not be focused on what is our personal best, because that's irrelevant and self-focused and leads to a shallow kind of selfishness. It undermines what can be built by human hands through collective effort. It gives credit when none is due (to work with no results). It makes us focus inward and generates concern with esteem and status. We shouldn't be worried about that, we're not animals. We should focus on what works, what's a good idea, what brings results.
This is just fundamentally wrong. The correct level of analysis to fix the world is the individual. If individuals aren't responsible for their actions and doing their best in life then the world will never be fixed. By saying that the world needs to be fixed before individuals you're giving people an excuse to not try their best.