"Yes, officer .. he was a little shorter than average, I'd say, brown eyes, black hair, spoke short, curt, definite accent, and he had a devious look to his smile, and this attitude that I couldn't stop him, oh, and he had this mole on his face to the left of his nose ... "
"Okay, thanks, Ma'am .. we'll keep a look out for anyone matching that description -- we'll get him, you can rest assured."
In this particular case of 20 million law-breakers, the group-description profile is an ethically appropriate target.
How a suspect looks is always germane to hunting him down.
Whenever a suspect(s) is pursued, a number of innocents with similar profiles get detained for questioning and released, no harm done, and it even becomes their interesting story of the day.
Real Americans so detained will thank law enforcement for being on the job.