Is any other nation more whining and grumpy than Greeks?

I mean, it's a very, very embedded aspect of the mentality of the average Greek to constantly whine about everything, about how shitty the country is, about how there's no future etc, etc...

But they won't do one thing, no matter how much they'll whine: propose actual solutions or even better, CONTRIBUTING to improving the situation.

They're going to be constantly, e.g. complain about the state of the Athens Metro. Ok, then send complaints en masse to the company running it. That has happened, and the company due to pressure, actually corresponded, i.e. with a recent vandalism of the Monastiraki metro station or of some trains.

But no, they won't even do that.

They're very miserable. Unfortunately. They won't do anything but whine, without doing anything to improve their own or the general situation.

Is that the mentality of all other Balkan nations?