Britain to introduce compulsory digital ID for workers

I assume you're not from the UK?

If we wanted we could stop illegal immigration extremely fast – as you say we are an island so it's relatively easy to stop people arriving. We don't need drones. At the moment after the French have given life-jackets to the illegal migrants and their boats have set off into the British channel, the people smugglers will call the British coast guard and ask them to go pick up the migrants they're smuggling into the country. The UK coast guard then picks them up and escorts them safely to shore. From here the police will be waiting, not to arrest them, but to take them to their hotel and give them a hot meal. Shortly after this charities in the UK will give them phones (typically iPhones), clothes and bikes to get around. The government will also give them some spending money to spend in our towns and cities.

We obviously don't have to do any of this and ID cards wouldn't stop any of this. We choose to do this and this is why they come.

However between the various reports of migrant hotel stabbings, thefts, sexual assaults, and rapes of children, it's been discovered that some migrants have been working in the UK – primarily in the gig economy. All of the things I've said to this point are not deemed issues and the government has no intention in changing them, but the fact that a small percentage of the migrants coming here are working has caught the eye of our politicians who have stated very strongly that they would prefer the migrants coming here don't work. The digital ID cards will hypothetically help with this "problem"

It's hard to explain to people outside the UK how strange this place is. Most countries want a controlled immigration system and treat border security as a national security priority, and when they do allow immigrants into the country they almost always want them to work and pay their own way. The UK basically does the inverse of this. The explanation varies between some combination of letting hundreds of thousands of Afghans into the country is the right thing to do, to it's the law so there's nothing we can do about it.

Legal note:

This is not an anti-migration post. I am pro-migration.

The French have no incentive to do the British immigration authorities' job for them. In fact, Britain very recently loudly quit an multilateral alliance that involved — among other things – common migration policy.

Why shouldn't France give life jackets and boats to people who want to leave France?

I agree. I think the French are doing the right thing here. I only mentioned it because it's one of the many things governments do which encourage and normalise more coming.

British politician could try to strike a deal with the French to stop them helping individual who try to enter the UK illegally, but obviously it would only make sense for them to do that if the British were also trying to stop people entering the country illegally. Like you say, we can't expect the French to defend UK borders.

In regards to leaving the EU this wouldn't change the situation meaningfully, it would just allow for more cooperation in how illegal migrants are distributed across Europe. Like the UK, EU countries are also legally not allowed to deport Afghans. It's not as if the EU doesn't face similar problems.

The UK would arguably benefit from being able to redistribute migrants to other less-popular EU nations. For reasons inexplicable to me, many people seem keen on migrating to the UK.