America's Regime Change Wars Created Europe's Refugee Crisis

You could also argue a lot of it is down to Russia doing it deliberately rather than the US accidentally. See eg https://www.aei.org/op-eds/russia-created-a-refugee-crisis-a...

The main waves of refugees I recall are Syrians, with Russia involved, Ukraine obviously caused by Russia and apparently their Wagner type proxies are merrily overthrowing governments in Africa and contributing to the Africans crossing in dinghies. I don't recall many waves of people from Iraq, Libya or Afghanistan.

Same as before you send them? They're in detention and go back to it. Presumably now with fewer privileges as they've lied to you.

This form of detention may seem costly, but the deterrent effect makes it less expensive overall when people realise the UK isn't a soft touch.

I think though that the debate isn't really about "does this work". It's more about the question of whether the UK (or any country) is responsible for looking after anyone that turns up on our shores.

I don't think we are, the default position should be the equivalent of an iptables deny rule.