I believe the protests were organized by both illegals and their supporters - but does it really matter? It is becoming grossly apparent that the illegals are losing their former fear of being deported and becoming emboldened, despite the demonstrations being peaceful. I'm sure if you type in your query on Google "immigration activists" as you called it, you will be given a whole slew of information to choose from, rather than one particular group or site. Give it a try.
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