If one is considering the freeloading done by migrants one has to factor in access to the NHS without any questions being asked.

What is this free heathcare worth to migrants in financial terms (if they had to buy equivalent health care insurance in the United Kingdom what would it cost them)?

http://www.newstatesman.com/politics/2014/11/cameron-welcomes-eu-court-benefit-tourism-ruling-what-exactly-are-migrants-entitl-0