If you're happy to die, why be bothered by others' trying to live longer? You won't be around. And assuming people can finance it themselves, is it really a problem for society?
There are many reasons that people living forever would be a problem for society, the most obvious being an ever-increasing population.
Your post was vague and emotive, I did my best.
Also things like chronic disease and violence are a "natural" part of life but we seek to minimize or eliminate them, why do we have to accept a "natural" death and not attempt to put it off as long as possible?
> the most obvious being an ever-increasing population
This notion seems to be commonly accepted as bad without being properly examined.
Why is a larger population in and of itself a problem? Lots of societies throughout history have used less resources than we have and we have superior tech now. We are well within our abilities to use the same or less resources with a much larger population. Why should there be a limit based solely on undefined notions of "too many"?
I'd also say people may want more life for themselves, but what does that mean at scale, forever?
Only in places like the US, which is out of its mind in this regard.
In most other western countries, they just let (old) people with terminal conditions die.
> living longer is a huge drain on resources that could be better spent on other things
That's not right. Any living is a drain on resources and draining resources is the issue not the living. More broadly we need to use less resources or manage them better and there are much better ways in doing that than reducing life.