There really isn't a sanitary way to do mass deportations. It will be violent. It will get individuals like this. It will disrupt businesses. It will disrupt our food supply.
Trump says he wants to model it after "Operation Wetback". That operation ended up rounding up and mass deporting American citizens.
If you think things have improved in that regard, don't kid yourselves. There were American citizens deported during Trump's first term as well. And Trump's Administration created a unit specifically to do denaturalization of naturalized citizens. Stephen Miller promised to expand those efforts in a second term.
If you have ever been the victim of lost documentation or government record keeping mistakes, you know how helpless that can feel. Now imagine if it means you get deported during this chaos.