How can kids stay hopeful when their parents complain about everything?

I was talking to a young friend the other day, 26 years old. He’s not too happy with his new stepdad, who is always talking about what the problem is with everything he sees in the news. He whines about the economy and says there is just no hope for the future. WTF?? Who would ever say that to someone of the next generation?  The next generations are the ones who can fix what has been done so far.  Never deprive someone of hope, it may be all they have.