False hopes based on.... who knows?
If it doesn't bother you, I guess that's your right, as long as you don't try to take away mine. The problem is, though, that that's exactly what many Christians would like to do - redfine history, redefine this country, the U.S.A., redefine science and generally impose their version of morality on everyone. Whether you support all of these things or not, to me, all Christians are complicit in them merely by adhering to the faith that empowers these ambitions.
If you wish to be even the slightest part of all of that and base your life and hopes on "things unseen" (in other words, unprovable and not necessarily sensible), go ahead. For me, it's a matter of personal pride to think I have my head screwed on straight.