That's why I said most likely, the immigration from the EU isn't an actual problem, not as far as the "problematic" immigration into the UK goes.
EU individuals do not make the bulk of the economic immigration into the UK while making the majority of the high paid migrant workers.
If the UK want to deal with immigration "family" visa's and bogus work permits for people who end up earning below the minimum wage is a far better target than EU nationals.