If Ukraine and Moldova enter EU, their citizens will flood European labour markets

Populists are gaining strength for many reasons, but mass migration is the biggest. The millions of migrants that have swarmed into the richer nations of the EU have created cultural and economic pressures that drive working-class voters to the populist Right.

Allowing Ukraine and Moldova into the Union without limiting their citizens' right to live and work anywhere would almost certainly create yet another massive influx of cheap labour. The two nations would easily be the poorest in the Union, with only about $22,000 per capita GDP (€19,000) as measured by purchasing power parity.