The reason that we need immigrants is because our unemployed dont have the skills/education that employers want. eg: nurses, mechanics, plumbers, electricians etc etc. Over half of the mechanics at a nearby motor dealership are migrants who had extensive product training in their country of origin. Many of our unemployed casual workers are "unemployable" For example my local bakery/cafe only employs university students (many of which are part time) because they are more reliable, honest & organise their own rosters and have less "sickies" than the local unemployed.