Billionaires are funding Farage, not because of immigration, but because he is offering a Belarusian UK outside the ECHR - zero workers rights, no social security, no building or drilling regulations or even an NHS. They will have a field day at the expense of all of us.
No migrants = no workforce. Why even last Tory ( not exactly migrant huggers) government increased quantity of work visas. Otherwise same as what is happening in US healthcare as shortage of workers drives up costs and forces bankruptcies.
The EU is probably starting to feel glad about Brexit now. Means they've only got Hungary to deal with.