But “wasting” government resources on immigrants (those few that don’t work and as such don’t enrich the country they immigrate to) would only impact the economy if the health of the economy is reliant on government help. Just because the government is spending more, doesn’t mean the economy is worse… (often time it’s actually better off with government spending). Unless we see massive tax increases in such countries that will impact wealth generation and labor costs etc. I cannot see any negative impact on economic health.
Quite the opposite. Immigration usually helps fill in gaps in “economic planning” and the extra labor helps the economy. And increased government spending for the poorer groups of the population usually boosts the economy a lot more than tax cuts. So any negative economic impact of immigration has to overcome these positive ones.
That said, there are certainly other, non-economic reasons against immigration, but that wasn’t the point.
And with 9/11 a lot of people have talked of blowback. Are you saying the same can be said about Israel?