The soil in those parks should be just the right texture for the illegals to easily dig their own latrines.
Tent cities would not only keep illegals 'housed' and fed to comply with orders from liberal courts but also keep them from freely roaming around America to live the good life which is why they came here.
A few months in a tent city on rice and beans and mucking out their own latrines should be enough to encourage some to self-deport.
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Tent cities already exist. They should send these illegals next to their houses.