From that article: 

AC: So the idea of zero tolerance under the stated policy is that we don’t care why you’re afraid. We don’t care if it’s religion, political, gangs, anything. For all asylum seekers, you are going to be put in jail, in a detention center, and you’re going to have your children taken away from you.

That’s the policy. They’re not 100 percent able to implement that because of a lot of reasons including just having enough judges on the border. And bed space. There’s a big logistical problem because this is a new policy. So the way they get to that policy of taking the kids away and keeping the adults in detention centers and the kids in a different federal facility is based on the legal rationale that we’re going to convict you, and since we’re going to convict you, you’re going to be in the custody of the U.S. Marshals, and when that happens, we’re taking your kid away.

So they’re not able to convict everybody of illegal entry right now just because there aren’t enough judges on the border right now to hear the number of cases that come over, and then they say if you have religious persecution or political persecution or persecution on something that our asylum definition recognizes, you can fight that case behind bars at an immigration detention center. And those cases take two, three, four, five, six months. And what happens to your child isn’t really our concern. That is, you have made the choice to bring your child over illegally. And this is what’s going to happen.

This is the Tucson chief of police. 

If it was immigrants whose children were taken, I would also be up in arms.  These are NOT migrants, they are illegal immigrants who have no legal right to be here in any fashion.

Now the actions of separating children is an issue that needs to be addressed, on that I will agree.   Taking children should NOT occur but let's get it right, the children are NOT taken from migrants or immigrants, they are from those who have no status, they are violating laws by simply being here, they are ILLEGAL.

Wrong on two counts. They're taking children from asylum seekers too, and those people are not considered illegal.

Count two? It's just plain evil.