I must take issue.
Looking back to the past when Romans, Saxons, Danes, Scandinavian French and others arrived in this country the country was forced to change. Many did not like it but change happened and the country learnt how to accommodate and adapt. I think history will repeat itself even though many want things to reverse unfortunately for them the main employers don't.
The original Brits, whoever they were, laid no claim to an 'immigration policy'. Consequently those wishing to enter the country did so at swordpoint. As far as I am aware they showed no passports, nor did they have to show they had any relatives already resident or that they had gainful employment ready and waiting. Just as well since declaring 'conquest' as the purpose of their visit whilst frank and honest would have been rather academic given the invasion force queuing patiently at the non existent passport control.
Admittedly they had to make their own way, no benefits, translators or housing was offered. Again academic since they simply took what they needed by chopping up whoever claimed ownership at the time.
Also the demographics were a bit wonky as these immigrants were suspiciously biased towards men of a swordbearing age.
I must also take issue with the mention of the 'French'. The last lot of supposed 'French' to invade successfully were Normans, Normans were Norsemen also known as Vikings.
Immigration in modern times was, supposedly, a controlled process managed by professionals and subject to impressive legislation.
Labour have since admitted they fecked it up and the Tories have done sweet bugger all about it except fiddle figures.
Were I to accept that Normans sticking arrows in Harold's eye was just boisterous joy at gaining entry to our septic isle then you would also have to accept that Iraq trundling into Kuwait was simply an immigration spike,
I accept we are an island of mongrels. It's the constant protestations that it's all fine, under control and well managed that get on my nerves. Harold could have made the same protestations with the same wild inaccuracy if he'd kept his helmet on. 'Careful with that. you'll have someone's eye out'.