How can one help people who always complain—who are always dissatisfied but don’t really want to do anything about their problems?

Lama Ole’s answer:

Let them see that such behavior doesn’t interest you. Don’t respond to them! When you call people’s attention to their wealth, they become rich. If they pay attention to their weaknesses and mistakes, they become poor. Basically, highest truth is highest joy.

It is also good to show people what is going on in the world to put their problems in perspective. That also helps them a great deal.