leo1 said:
a lot of it is hype and exageration of things that are technically true. i think what they mean is that most illegal immigrants don't pay taxes or get any money withheld from their paychecks (because they're getting paid in cash under-the-table) like the rest of us, but they still get the same benefits such as free or low cost health care (the same that any uninsured legal american gets) and free public school education for their kids. so without paying into the system they are putting a huge strain on the system.
However, the people really making money are those hiring illegals. They can pay lower wages and do not have to pay social security or workers comp premiums. They do not necessarily have to keep a safe workplace or deal with OSHA standards. There would not be a market for illegal aliens, if there were no employers. To be fair many illegals use fraudulent SSNs to obtain employment and it should not be the employers responsibility to assess immigration status, but just as an employer may do a criminal background check on a potential employee and just as an employer can choose to bond his employees, that employer could certainly do a check on the social security number as well.
A story from the 2003: PanAm Games in the Dominican Republic. The country shares an island with Haiti, one of the porest countries in the world. The Haitians would stream into the DR for any kind of work and employers, including the government, thought of them as less than human. Worksites would be strewn with glass shards, nails and broken wire and the Haitian workers weren't given shoes to wear; they would be hoisted on cranes toinstall lighting with no safety equipment; they would work in closes spaces without respirators and in exchange for 12-14 hours of work a day, they would get a hot emal and $3. When the beach volleyball courts were deemed too rocky, instead of bringing in a couple truckloads of sand, they had a dozen Haitians sifting the courts by hand...it was just cheaper.