Not necessarily, My wife is of Mexican decent and we can't stand illegals, in fact no one in her family supports them.
So, lets assume your wife's relatives come and visit. During the visit you, your wife, her sister and your nephew and niece decide to go to the zoo.
On the way your lead foot gets you stopped on the highway. As the trooper writes you a ticket he asks your wife and sister for their identification.
Your wife provides her driver's license, and your sister-in-law her passport. The officer asks your sister-in-law if she entered the U.S. legally.
She says, "of course" and the officer takes offense at her tone and demands proof that she and her kids have the legal autority to be in the U.S.
One thing leads to another and soon your neice and nephew are going to a shelter with a social worker and your sister-in-law is hooked-up and on her way to county jail with an immigration hold.
20 hours later its all cleared up. No harm, no foul. Correct Opie?