“Those that arrive in Poland or Moldova are likely mostly Ukrainian... but the question is how many of them are economic migrants and how many are draft evaders? (Ukes are about to draft those without military training too, age limit is 60).”
ukrainian males between the ages of 18 and 65 are not allowed to enter other countries bordering Ukraine, as they are needed to fight the war for their country against the Russians. No Ukrainian males are getting out unless through some devious means. And the majority of those males WANT to stay in their country to fight for it. They are patriots.
I read the European press: Polish and German trucking companies are complaining about delays because so many of their drivers have returned to Ukraine to fight.