Answer:
Group flying far overhead: This might represent the privileged. Some of these privileged people might take something for granted.
Group represented by “those of us whose wings have been clipped”:
This could refer to the people who are suffering and are in poverty. It could also refer to people who fell from glory.
Group represented by “those of us who dwell in unknown spaces, those of us who are beautiful beyond belief but that sometimes exist in environs too deep and murky to be seen from any stable surface.”:
This could mean people part of the minority and underrepresented but have colorful cultures and lifestyles. This could mean minority cultures.
Explanation:
For the first group, I interpreted it as the privileged people in the world. I said this because of their success. I have noticed that some of these kinds of people take a lot of things for granted.
For the second group, this could mean either people that are suffering or people that fell from glory. They could be suffering because, with clipped wings, you cannot fly. On the other hand, they could have lost something. So they are now within the dregs of the world with clipped wings.
For the final group with “those of us who dwell in unknown spaces, those of us who are beautiful beyond belief but that sometimes exist in environs too deep and murky to be seen from any stable surface”, it could mean minorities that are underrepresented but have colorful cultures and lifestyles.
