There are much better songs with much better outcomes. Those school boys who barricaded around Rue de la Chanvrerie changed nothing and got themselves killed for nothing. It wasn't until the Jacobins radicalized enough people that they were able to force the aristocracy out. So I still stand by the song not being one to use for protest.
That song is very hard to coordinate with a crowd of untrained singers. It was written to be sung on stage in a theater, not by a rowdy crowd. It can be (and has been) used as a dub over videos of protests though.
The reason why La Marseillaise and its offshoot L'Internationale were so successful is that they're slower songs, meant to be absolutely belted by a crowd of belligerant drunks. La Marseillaise is originally a literal revolutionary marching song.
Plus La Marseillaise just goes harder lyrically. It would actually have been pretty scandalous if it was written in 1980 for a play. "To arms, citizens! Form your Battalions! Let's March! Let's March! So an impure blood can water our furrows!"
Maybe one of them Angelino theatre kids should do a partial English and/or Spanish translation focusing on rhythmic accuracy.
Will you join in our crusade?
Who will be strong and stand with me?
Beyond the barricade
Is there a world you long to see?
Then join in the fight
That will give you the right to be free
I don't know the song. Seems like a good choice, except for I'm guessing a lot of people dont know it as well. My pick would be Imagine by John Lennon.