Life without hope is hell. There is nothing wrong in ideals (unless you can't accept that sometimes ideals cannot work).
I am just as cynical as the next man - 58 years have taught me that life can be very hard. But I still insist in believing in the best of everyone - I don't think I could bear not to do so; we are all "Of God" (or Allah, or whatever people call him) - so why don't we start behaving like brothers and sisters, instead of strangers to one another?