Word from the wise, FootballFan: you should always be able to get a job at McDonald's... 
The issue with unlimited immigration from the EU is that the kind of migration that it attracts the most is the migration that attacks the jobs most vulnerable during recession (with the exclusion of bankers this time around). If you want to protect the most amount of jobs during times of recession, you want to have as much control over your borders as possible, so that you only let in people who skilled in areas that you need.
This isn't my personal view, by the way, as I few limits on migration as just another barrier on free trade. The way I see it, more open borders everywhere will have the same benefits, in the long run, as the lowering of tariffs, or the allowance of FDI ever had.
