Ok, so the details are vague but the ending gives a strong hint.
What I remember is that humans are suffering and either:
A) Send out humans out into space for help from other life to get help and they eventually find help but come back much later in the future to see humans barely alive. And they now have a ‘solution’ to most human problems.
B) Aliens find humans in dire need of help and offer to solve most human problems.
Anyway, at the end as the aliens/future humans are informing the Earth humans of all the marvelous advancements they can offer them, they mention that they: “Can also fix the humans being all white” or something along those lines.
I think it’s meant to be a cheeky commentary on race but I can’t find it for the life of me.