After all, they cannot rely on further immigration.

Already in 1690, the colonial authorities had imposed severe limitations on further immigration from China.

By generating further immigration, migration leads to its own cumulative causation over time.

Any further immigration of non-citizens is to be prevented.

An end to all further large-scale permanent immigration from the New Commonwealth.

Also, this policy has the added affect of further encouraging illegal immigration.

All further immigration ceased and contacts with the homeland withered.

This was supplemented by further immigration from Asia in the proceeding decades.

The further large-scale immigration you are advocating can only lead to large-scale problems.

These proved to be short-lived, however, and Denmark closed its door to further immigration in the early 1920s.