I would agree that Ukraine is not doing well and that a corrupt country run for the benefit of its newly moneyed elite is driving out hundreds of thousands if not multiple millions of its citizens to live abroad.
One could publish hundreds of thousands of such stories and we would not be more informed, know more or understand more about Ukraine. More importantly, we would not be solving any of its problems. Not one of the people profiled in the series has shown himself to be a genuine observer of the big picture let alone of his own life. Not one is likely to make a contribution to Ukraine other than to send money back to poorer relatives back home.
There are many other kinds of people who have gone abroad. There are people who have gone abroad to study and bring back their new found expertise and insights to Ukraine. There are people who have gone to perform abroad and represent Ukraine. There are others who have gone to explore the world and bring some of that back to Ukraine.