What if the future is horrible, dystopian or totalitarian ?
An advantage to being alive is that it gives you the opportunity to work to make things better − and the longer you are alive and healthy, the more you are likely to succeed. If the world does become a dystopian, primitivist nightmare cryonicists probably won’t be reanimated at all. Either the future will be more advanced in every way or it will degenerate to a condition in which reanimating or preserving cryonicists is not feasible. You won’t know what opportunities the future may hold if you decide ahead of time that it will be a bad place and don’t go there.