Wait a minute. How is demanding prevailing wages going to drain social services? Most social services are means tested and the more you make the less you get. I don't follow.
Once the prevailaing wage demand is issued, and strikes ensue, the demand for work will diminish significantly due to cost. Then the millions of people here legally but unemployed will demand medicare, medicaid, unemployment insurance, etc. Atually, the leftist pols will demand it for them. It is very unlikely that the left will allow deportation of green card holders (or legalized immigrants) due to unemployment. They seek to raise taxes and encourage hand outs as an investment on votes once the illegal becomes a citizen and can vote.