How can African illegal immigrants be repatriated if they cannot identify themselves?

How to repatriate, how much manpower and material resources will be spent, not to mention turning a blind eye, as long as it is not caught illegally entering the country, it will basically be fine. If you really want to catch it, you can catch a lot by visiting Chinatown. Not only in China, but also in Latin. Anyway, Americans work harder, while Latinos just drag their feet, just like blacks. I hope they are kicked out, but in fact, they are very good at death.