This should be a un-ignorable reminder of the value of due process. Better a guilty person go free than an innocent person sent to their long, slow, undignified death.
I agree with you.
Now explain how can we scale the due process to deport everyone that entered here illegally in a reasonable timeframe. 15-30 million hearings will take a century to be resolved.
The system is not designed for such massive load in mind.
"We don't have the resources to give that many people their full legal rights" should not be followed by "so we will deny them their rights." The government could massively expand the number of immigration courts or otherwise massively increase resourcing that goes into processing these cases. Otherwise they can get fucked. Legal rights make the job of law enforcement more difficult. That's a good thing.