WOTC - Allow immigration

I asked this question in the Wisdom of the Crowd:

Should Singapore allow immigration?

Here are the responses:

43 % - Yes. For jobs that Singaporeans do not wish to have.
22 % - No. The immigration will lead to other jobs being taken away.
22 % - No. The immigrants do not have to serve National Service, while local males have to.
13 % - Yes. We need more people to create a vibrant economy.

See the pie chart at: 
http://www.wisdomofthecrowd.sg/chart.aspx?ID=765