How would Batman handle undocumented immigrants?

Gotham City is being overrun with illegal aliens. They are costing citizens billions of dollars in welfare benefits, are killing citizens driving unregistered and uninsured vehicles, selling fentanyl to school kids, clogging up Emergency Rooms and straining city resources that were meant for citizens.

Batman wants a safe Gotham City for the citizens. What do you think he would do to fix the problem?

How would Batman handle undocumented immigrants?
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How would Batman handle undocumented immigrants?
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