If I haven’t already made it abundantly clear, the assumption that the future you wake up in is at all desirable for you is a far-fetched one. It ignores the possibility of waking up as a slave with no opportunity for suicide.

See Reversal test, Motivated skepticism, Rationalization.

(The assumption that you can go to a grocery store and buy some orange juice is a far-fetched one, since it ignores the possibility of a global conspiracy led by Sarah Palin bent on not letting you do that.)