These are students all right.
https://www.chicagomaroon.com/article/2017/5/23/students-protest-fiji-present-petition-demand-rall/
I think I may have walked past the rally as it was happening. It looked bigger than 50 students - though definitely under 100.
This specific mobilization was prompted (in part) by a frat that had a fantastic idea: they decided to hold a construction-themed party on Cinco de Mayo (one post in the event page, which garnered a decent number of likes: “What’s the moustache policy for tonight? Asking for an amigo”). When concerned Latino students got in touch, they changed the FB event to 12:00 (because, hey, that’s technically May 6th), promised to scrap the construction-worker costumes, and threw a construction-themed party (costumes and all) anyway. What could go wrong?
A lot, as it turns out. Even other greek organizations are distancing themselves from FIJI.
The point is, outside activists could care less. There are lots of non-RSO groups at UChicago. Let’s leave scapegoating of “outside agitators” for another day.