Pepper spray them into the asphalt and zip-tie their wrists;
Herd them into a big enclosure with high chain link walls, big communal tents, and cold showers;
Ring the dinner bell thrice daily, and toss cans of Schlitz and bags of pork rinds in as sustinence.
Now, when this Chinese Fire Drill over the coronavirus ends, your asses are getting shipped back to Africa and the ME as undesirables after you log a little time on a chain gang, picking up roadside trash and scrubbing graffiti off of public monuments. What you do with your own crumbling, bullet-pocked concrete block hovels built on compacted sand piles is up to you.
{sticks microphone in your face} Can I get a commitment from you to run for POTUS in 2024? :)