Which is a perfectly pertinent question in my opinion; Is uncontrolled immigration a good thing for the UK?
Economically, yes.
An increase in the working-age population increases the workforce, GDP, consumer spending and tax revenue.
It has been shown that EEA migrants have made a positive net fiscal contribution to the UK economy. There is also absolutely no correlation between net migration and the UK's unemployment rate. In fact, despite continued net migration, the UK's unemployment rate is amongst the lowest it has been for the past 40 years.
However, what a lot of people don't seem to realise is that the majority of migration to the UK is made up of people from
outside of the EU. In the year ending September 2015, for example, the net migration of EU citizens was 172,000, compared to
191,000 non-EU citizens.
In fact, in that year alone, net migration from non-EU countries was
4 times higher than migration from the Czech Republic, Estonia, Hungry, Latvia, Lithuania, Poland, Slovakia and Slovenia.
Leaving the EU will do nothing to curb that number of non-EU citizens, and if we end up joining the EEA to maintain access to the single market like Norway and Switzerland (which has a high probability of happening), the free movement of people to and from the UK will have to remain the same as well.
All in all, there is a real chance that those voting Brexit on the grounds of immigration could be leaving the EU for nothing.
Interestingly, the majority of EU migrants also arrive from some of the EU's wealthiest countries. In that same year, double the number of net migrants arrived from Austria, Belgium, Denmark, Finland, France, Germany, Greece, Republic of Ireland, Italy, Luxembourg, Netherlands, Portugal, Spain and Sweden, compared to the 8 countries I mentioned above.
Plus, let's not forget that around 130,000-150,000 British people leave the UK every year to move into other countries within the EU and elsewhere around the world. Us Brits take advantage of the free movement of people just like any other country.