Let's deconstruct the sign word by word.
"Mass"
Huge numbers. Not selective. There are not "masses" of recent immigrants in the country. There are masses of undocumented Americans and other non-citizens. There are also masses of non-Christians, & non-whites.
"Deportation"
To forcibly remove. Combined with mass this means systematic violence.
"Now"
No chance of due process. Even though the constitution protects all PEOPLE not just citizens.
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