Brexiteers seem to me largely motivated by a fear of increasing numbers of immigrants coming to these shores, but if they think that will be the case post-Brexit they are IMO living in cloud-cuckoo land. Consider this (written by Daniel Finkelstein, so ripe for ridicule by the Leavers, but never mind...)
"By leaving the European single market, Britain makes itself a less attractive place for big businesses to invest. This is hard to dispute, and in any case they are overwhelmingly telling us themselves. It will also make it harder for us to trade.
So unless we act, we will be poorer. The Leave economic argument is that by freeing ourselves from the EU we will be able to act. The Remainiacs aren’t getting this, they argue. We won’t just be sitting here, suffering. We will be taking back control.
Now think what this might mean in practice. To be a success outside the single market, to be attractive to businesses and to investment, we would need to be a European offshore low-cost competitive mecca for companies.
We would have to offset the increased cost of doing business here that leaving brings (in the form of barriers, both tariff and non-tariff, to European trade) by cutting our own costs even more sharply.
We would need to have lower taxes on foreign rich people than the Continent, pay lower wages to unskilled people than elsewhere in Europe and cut public spending further to keep taxes down. We would need to make old people work longer. Oh, and we would need a huge influx of immigrants, both skilled and unskilled, to ensure that we had a very competitive workforce".
Now tell me why he is wrong.