Yeah that one's a tricky thing to discuss. On the one hand, we tend to view death as a bad thing and longevity as a good thing. Anyone who's ever lost a loved one understands why. There's no real argument against that.

But it's precisely because of the unprecedented nature of technological and medical breakthroughs that have extended human lives that we face new challenges that human society has never needed to confront at this scale. And it's difficult to discuss those in earnest without being accused of ecofascism.

Like clearly, forced population decline is evil. But education and access to contraceptives can help stabilize the population on a more voluntary basis. It's less simplistic to implement, but ethical solutions typically involve more complexity than unethical ones.

Artificially increasing mortality rates would likewise be evil. If the technology exists to extend human lives, then everyone should have equal access to that.

But we're going to run into very real practical limitations such as: what is the max carrying capacity of the Earth? Can the human population continue to grow without exacerbating extinction-level events for other species that are already happening due to human activity? Can the population level-off before surpassing 11 digits, and can a population of this size exist sustainably while offering universal access to a reasonable minimum basic standard of living? Can we produce enough food and water for this many people without negatively impacting the environment?

I recognize that some of these answers are as technical as they are ethical, and some of them are easier to answer than others. Some merely require systemic-level structural changes, some require collective willingness and participation. Others may still be more open-ended questions that can't be fully answered until we experiment with a few potential solutions.

But overall, the reality is this: there are no more new frontiers, at least not until space colonization becomes a possibility. We can't simply expand into uncultivated wilderness. And we're already seeing some world powers trying to take land by force from their weaker neighbors. It's not even limited to the most obvious examples (Israel, Russia, US, etc.). It's happening in Sudan, in West Papua, in Myanmar, across Himalaya.

And things are only going to get worse as climate change accelerates, until we can stem the tide and reverse course, which may take centuries even if we start immediately. Millennia if we don't start very soon.

So yeah I digressed on a few tangents, but coming back to your main point, yes, I agree that medical breakthroughs should be available to everyone equally, and I also agree that once a politician turns 70 they should be allowed to finish their term but should not be allowed to run for reelection.