Imagine having a giant mob willing to march and take the fucking capitol, doing it while the police supported you and the army looked to their bellies, and not even getting concesions out of it. WORSE: your movement and party is shitting itself after it.
I really believe they could have pulled something IF Trump wasn't Trump.
You don't have to do any of that, you just have to get them to ask agree that they are getting fucked on pay or benefits and work from there.
"Did you see they raised the price of 'x' again? Kinda weird how we haven't gotten a party bump"
Target people who had covid/other illness and didn't get solid comp pay
"That's bullshit that you missed 2 weeks of work and they didn't even pay you full time for it, you got it on the job, they should be more responsible with our heath"
Target anyone who seems to have existing anger at the company and agree with them/help them so something
"That's fucked up that you got written up for being 5 minutes late, there was traffic and you didn't cause any problems. Let's write something to send to management about this. I think we should have a longer grace period"
Keep doing stuff like that and being helpful to everyone when they need it. Drop hints here and there, use dogwhistles when you can, if someone responds to one bring them closer and let them know your plan. Once you get a few people, it's easier to get more. Quiet organizing can work, but you have to be patient.
The other option is to just come into work and start screaming about a union. Tell everyone that you need to organize and give them the contact info of a local/a wobbly contact. Make a scene, scream leftist shit, get fired in a blaze of glory and shout "YOU HAVE NOTHING TO LOSE BUT YOU CHAINS" as they walk you out. Immediately go to the local newspaper and tell them you have a story about harassment and abuse at your former job, file a complaint with the NLRB, basically martyr yourself and make a racket so people notice.
That option is really only viable if you're already a salt and got found out, are already getting fired for something else, or for caught doing quiet organizing and are fired for that. People pay attention to drama so don't ever go down quietly, make sure to compile evidence wherever you can while you're working so you can give it to the media or have something to publish online later. This method had actually worked at a couple places around me.