‘Millennials’ is the label used to describe the generation, mostly in the U.S. and the U.K., who were born around 1980 and began to enter adulthood, and go to university, as the millennium year 2000 arrived.
According to the Centre for the Future of Democracy, part of Cambridge University, they are now, when questioned about democracy, saying that they are losing faith in it.
Of course this is a vaguely-phrased question and therefore gets a confused answer. What this generation, now in their thirties, is really saying is that the system of government under which they live is no longer working — for the them at least — and therefore they would like to see something much better at delivering a higher and fairer quality of government.