While it is true that optimism generally is a sensible approach, I really dislike how it's often used to dismiss the various factors that can make it difficult

While it is true that optimism generally is a sensible approach, I really dislike how it's often used to dismiss the various factors that can make it difficult for some to reach that top, or progress towards it. Basically, it's good advice when applied to the self, but terrible when applied to others.