For the 80% rape thing, the only detailed reports I found were that they were raped by the people smugglers, and often saved by border patrol. Because if 80% of incoming illegals were raped by Border Patrol, then this would imply that US Border Patrol was intercepting 80% of illegal entries, a clear falsehood.
The detention center abuses can be bad, but they're not the same thing as the 80% rapes thing: that is done almost entirely by the criminal gangs that control the border crossings.
Mind you this is separate to what I was saying, which was that if you round up 11 million people and put them into guantanamo-like camps, you're going to have a humanitarian crisis. And "border police" won't be doing this. These people are living in normal communities around the USA and usually working, not breaking any other laws. You would need to pry into virtually everyone's life to work out who is who. And the source do back up that whole families are rountinely shunted into camps, already:
The way the government detains illegal immigrants often breaks fundamental constitutional guarantees, and holding whole families in detention is a particularly harsh abuse of human rights, the U.S. Civil Rights Commission said in a controversial new report Thursday, wading deeply into the immigration debate.
There are almost 4.5 million children in the USA who have parents who are illegal. So along with the 11 million illegals you now have 4.5 million kids who's parents are now in camps, and you either throw those kids into the camps for a total of 15 million, or you take them from their parents at gunpoint, and put them in institutions. You pick.