There is no proof for either, and both are purely based on hope. We have no technology available to resurrect frozen people and we don't know if such a technology will ever be available, and religious people don't know if they will be resurrected in the afterlife - they can only hope. The key word here is belief/hope.

Isn't this more a question of the relative strength of objective evidence? I have a problem with the idea that hope in and of itself is a bad thing.