Voting the Democrats out of office. I know some Republicans are terrible representatives of the people, they aren't perfect or honest people. But the Democrats are on a political party attempting to subvert America for their own gain.
Think for a second about this; those kids were on the road with no shelter, sometimes starving without water to drink, for the entire time they traveled with their parents. They had to do everything outside. Now they have food, shelter, people trying to keep them safe, water, and the cages are giving them some semblance of security against thieves and worse. ICE is doing a good job with facilities that weren't made to handle entire families. I think they are doing fine.