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Re:“Australians First”: Australia abolishing 457 temporary s... by valuearb on Tuesday April 18, 2017 @12:25PM (#14140150)
Struggling to understand why any country would not want more smart people, whether scientists or IT. On average I would expect anyone willing to sacrifice by leaving friends and family to move part way across he world in the diligent search for opportunity would be an asset to their new country.
Re:“Australians First”: Australia abolishing 457 temporary s... by Veratyr on Tuesday April 18, 2017 @01:35PM (#14140940)
Such a person would be an asset and if there were an infinite supply of jobs to employ such people in, we wouldn't need to restrict immigration nearly as much. Every new skilled person we get would contribute to and grow our economy.

However we don't have an infinite supply of jobs and every job taken by a skilled person from another country could have been taken by a skilled person from within our own country, had they developed the skill. It also reduces demand for those jobs, which reduces the motivation for people within the country to train themselves to perform it in the future and increases our dependence on immigration.

My argument isn't that immigration is bad, I'm an immigrant myself (Australia -> US) but it's definitely a trade off and needs to be controlled carefully.