A few years ago, there was a day of action in the US when migrant workers made a point about the contributions they made to the country / economy. Just checked, and it was actually 10 years ago - wow, time flies...
In the UK, we can't get through the day without relying on products and services which are produced at least in part by migrant workers, and any of our public services are similarly reliant on migrants.
There are now plans to hold a day to focus on this issue in the UK.
It started out on Facebook, and is now spreading to a wider area.
The day is planned for next year, so time for this to grow, and gain more publicity and awareness for the cause. This remains an emotive and controversial issue, as the recent furore over supportive comments by Gary Lineker and others shows.