[BitWielder1]

Really?
Are there gas chambers?
Are they subjected to grueling 12 hour work days and near starving?
Are they shot dead for minor infractions.
Who is doing the raping? Guards or inmates?
Were the concentration camp prisoners free to leave if they promised to go back home?

[Vigilanteman]

And that's just a short starter list. We could add scores of examples more why his statement is absolutely flawed but I'd start with:

Show me anyone who ever sneaked into a concentration camp to live or birth an anchor baby to establish a right to stay.