CYA. 11 million + illegal aliens even if you process 1 every 5 minutes it would take over 15 years to process them all.
55,000,000/60 = 916,666 hours
916,666/24 = 38194 days
38,194/365 = 15.2 years
The process would take hours or days in total and each hearing would be at least 30 minutes to an hour. You would need lots of judges, lawyers, and admin assistants to process that many people through the system. Trump does a good job of picking the right side of 80/20 issues. He's a good campaigner. He's lacking in the actual day to day grind of governance.