I go along the lines of Dick Smith can the land handle the influx in a natural manner?
The other question is that controlling the racial and major religious mix should form part off the immigration policy.
The evidence is compelling that multiculturalism has been a greater expenses since the diversity of racial and religious groups have started residing here!
I can’t recall all these extra expenses on immigrants during the 60 - 70’s including possibly the 80’s.
We need to plan to counter future disharmony with our immigration policy!