No. Given the technologies we're talking about, what the parent wrote in those two quoted sentences is literally as close to stating an obvious fact as possible when discussing future technology.
> These issues are fundamentally political, and there is no reason that they should be above any form of discourse or criticism.
Discourse and criticism? Fine. But first, understanding. And some basic math.
The way I see most of those objections look, some people would literally prefer everyone to keep dying over the possibility that they won't be the first to receive a life extension serum. It's one of the most selfish beliefs I've ever encountered.