The only way to round up the numbers Trump wants to round up at this point is by going to job sites. You may think differently, but I don't think criminal gang members are typically working construction, in meat packing plants or picking crops. They are busy doing...you know, criminal things.

Also, Biden has already addressed the numbers coming across the border [1]. So again, the people who are left are mostly hard working people trying to make a life.

[1] https://www.bbc.com/news/articles/c36e41dx425o