Technically not true. Out of the 320,000 immigrants we had in the year to June 140,000 were EU citizens. The majority were not, we had a choice as to whether or not they could come. Unsuprisingly the government decided if you are coming for work or education then you are more than welcome. Thats a 180,000 who wanted to come to add to our economy that we allowed.That doesn't make sense. You can't divorce the two. If the British were unhappy with immigration policy, for example, their government can't do anything about it while also remaining in the EU.
In that sense "Take Back Control" is a scam. We never lost it in the first place, we exercised control throughout. I say 'we' but of course I mean the Home Secretary, Theresa May, a politician of most hypocritical proportions.