In the language of Catholic social teaching, we might say that voters doubt whether the political system in which they participate sustains the common good.
Enforcement tactics do not in the end deter asylum seekers, who are typically fleeing life-threatening circumstances, but stricter enforcement does push border crossers to more dangerous paths.
Around the affluent world, new hostility, resentment and anxiety has been directed at immigrant populations that are emerging as preferred scapegoats for all manner of political and socio-economic shortcomings.