We are singing from the same hymn sheet here (unusual).
I cannot quite imagine you or Gep singing from any hymn sheet as such, let alone as a duet!
Our beloved resident composer has what appears to be a limited sphere of experience.
He needs a reality check, or even better, a weekend break in Bradford.
Not Bradford-on-Avon, I presume (which is close to where I lived until around a year ago).
My experience is considerably less limited than you appear to imagine. I therefore need no such check. Of course there are illegal immigrants in Britain, the Netherlands and elsewhere and of course some of those come to those countries with the principal or even sole intention of committing crimes (just as somoe of the British, Dutch, French, Spanish, Protuguese, etc. colonisers committed crimes in the countries that they once colonised and from which some of these illegal immigrants come). If criminals who are British citizens or legal immigrants commit crimes in Britain and get arrested, tried and convicted for them, due legal process usually ensures that they get fined or imprisoned in Britain or both; when illegal immigrants do so, the same happens to them if their illegal status is not revealed at criminal trial but, if it is so revealed on that or other occasion, they may indeed end up being deported and, unless there is very good reason for that not to happen, that seems only fair.
That said, you admitted that you are concerned not only about illegal immigration but about immigration per se; likewise, as I implied previously, I would hope that, as far as crimes committed by non-British citizens against British citizens are concerned, you would be bothered by these regardless of whether or not they are committed on British soil; in other words, go deport a Somalian illegal immigrant for having committed crimes in Britain and sit back and wait for that person to get involved in the kind of piracy activity that is currently in the news and which affects British and other non-Somali citizens while they are not on British or other non-Somali soil. There are also illegal immigrants who commit no crimes and work and pay taxes in Britain, the Netherlands and elsewhere, just as there are the other kind. If you really want to minimise the risk that any non-British citizens anywhere commit crimes against any British citizens anywhere, you'd have to ensure as far as possible not only that all immigrants, legal and illegal, be deported forthwith but also that no British citizen be permitted to leave british territory at any time - and I don't think that you - or even BNP - would seek to advocate that!
You and Gep each have very valid points about this difficult and vexing subject, but prosecutable crimes are prosecutable crimes regardless of who commits them - and that includes the crime of illegal immigration; the problem here is one of population balance (which needs to be kept in check as far as is possible - and I'm by no means certain how this could be done reliably and consistently) and sheer complexity; I'm sure that I have no need to point out that i am not referring to skin tone when I say that this issue is very far from black and white.
Best,
Alistair