The primary arguments I've heard for death are:
Don't worry so much about what arguments are used to support a policy. Arguments appeal to values. Figure out what you value, and write the important things out. Include a category for things you don't value valuing (e.g. love of sugar) separate from the rest. Then, for each value, ask if your dying or living would make the state of the world more in accord with your values. But since you mentioned a specific argument, I will mention an analogous one I have heard:
"The world is overpopulated and if nobody dies, we will overrun and ultimately ruin the planet."
"The world is becoming ever less religious, and atheists don't have enough children to replace themselves. If we don't fight secularism, humanity will die out."
immortal
If someone uses the "i-word" when you simply talk about living longer than a hundred or so, I recommend rolling up a newspaper, swatting them on the nose once with it, and repeating "No" several times, clearly and firmly.
Don't worry so much about what arguments are used to support a policy. Arguments appeal to values. Figure out what you value, ...
The other side of that is don't bother to argue against someone else's stated argument unless you also identify and appeal to the values that caused the argument. Knocking down a rationalization for a value only prompts people to come up with another rationalization.
Let it be noted, as an aside, that this is my first post on Less Wrong and my first attempt at original, non-mandatory writing for over a year.
I've been reading through the original sequences over the last few months as part of an attempt to get my mind into working order. (Other parts of this attempt include participating in Intro to AI and keeping a notebook.) The realization that spurred me to attempt this: I don't feel that living is good. The distinction which seemed terribly important to me at the time was that I didn't feel that death was bad, which is clearly not sensible. I don't have the resources to feel the pain of one death 155,000 times every day, which is why Torture v. Dust Specks is a nonsensical question to me and why I don't have a cached response for how to act on the knowledge of all those deaths.
The first time I read Torture v. Dust Specks, I started really thinking about why I bother trying to be rational. What's the point, if I still have to make nonsensical, kitschy statements like "Well, my brain thinks X but my heart feels Y," if I would not reflexively flip the switch and may even choose not to, and if I sometimes feel that a viable solution to overpopulation is more deaths?
I solved the lattermost with extraterrestrial settlement, but it's still, well, sketchy. My mind is clearly full of some pretty creepy thoughts, and rationality doesn't seem to be helping. I think about having that feeling and go eeugh, but the feelings are still there. So I pose the question: what does a person do to click that death is really, really bad?
The primary arguments I've heard for death are:
I think that overall, the fear most people have about signing up for cryonics/AI/living forever is that they do not understand it. This is probably true for me; it's probably why I don't grok that life is good, always. Moreover, it is probable that the depictions of death as not always bad with which I sympathize (e.g. 'Lord, what can the harvest hope for, if not for the care of the Reaper Man?) stem from the previously held to be absolute nature of death. That is, up until the last ~30 years, people have not been having cogent, non-hypothetical thoughts about how it might be possible to not die or what that might be like. Dying has always been a Big Bad but an inescapable one, and the human race has a bad case of Stockholm Syndrome.
So: now that I know I have and what I want, how do I use the former to get the latter?