Funny, I find that the cryonics advocates are the ones with the deep and visceral illogical fear of death. That’s why one signs up for cryonics, right? Being at peace with one’s mortality removes the selfish “rational” incentive for cryonics.

Individual people are replaceable, and don’t belong outside of their own time. If you want to advocate cryonics for the masses, think about what you would do if you had to live in a world with the reanimated masses of the 18th century. Because that’s the kind of mess you propose to inflict on our future descendants.