It will likely also take a generation or two until our anti-aging technology actually works and is cheap enough to have a meaningful impact on the planetwide population.

Exactly, do people really think that anti-aging technology is on the verge of becoming available to people who currently have trouble getting clean drinking water or who are dying because they can't get a few dollars worth of anti-malaria drugs or antibiotics?

A lot of the world can barely afford dirt cheap medicine from decades ago. They aren't going to be able to afford state-of-the-art anti-aging treatments for a long time.