The transcription I was using as my reference had "La Bamba" instead of "Let's Lanza", which I believe is a reference to a song by that name which is originally a Mexican folk song, but I'd imagine it was intended towards the covered version by Ritchie Valens, which is more popular in the USA. That's pretty damning right there, although the title of the song is presumably connected with the Spanish verb "bambolear", meaning "to sway," "to shake" or "to wobble." So there is the potential for this to in fact be a nod the IWW, who famously were popularly called "The Wobblies", although even the origin of that nickname isn't free from being weighted down by the muck of racism.
The transcription I was using as my reference had "La Bamba" instead of "Let's Lanza", which I believe is a reference to a song by that name which is originally a Mexican folk song, but I'd imagine it was intended towards the covered version by Ritchie Valens, which is more popular in the USA. That's pretty damning right there, although the title of the song is presumably connected with the Spanish verb "bambolear", meaning "to sway," "to shake" or "to wobble." So there is the potential for this to in fact be a nod the IWW, who famously were popularly called "The Wobblies", although even the origin of that nickname isn't free from being weighted down by the muck of racism.