I got fired for reading political headlines

EDIT: Update at the end

Bruh. Ive been at my security job for almost 3 years. Not a single verbal or written warning. Ive completed the management courses as well as earned employee of the month. And ive just been fired.

Cue to about 8 months ago and a new concierge was hired who works in the office across the lobby from my coworker and I. We got along fine and she would often bring up politics. We clearly werent on the same side but we stayed more than civil.

Eventually, that whole dock worker strike thing happened and she asked my opinion. I told her that if the dudes not working was gonna kill our economy, then they deserved more money. She did not like that at all and made it very clear she never wanted to discuss politics again. I obilged and only discussed politics with my co worker.

Past the election and onto Christmas eve, not a political word between her and I. Just work. She goes to leave early for the day, turns around, and starts screaming at me. "You are a loser. A sore loser. You are just sad you lost the election you no good loser. You will never amount to anything because you are a waste of life". She then left. I reported her, obviously, and they told me to kick rocks, and that politics was no longer allowed at work. They had me and my co worker sign a sheet saying we would get a write up if we were caught discussing politics.

Today, my co worker and I were going over the headlines from over the weekend. She mustve heard us because she started yelling at me about how we aren't supposed to talk about politics. She goes on about the loser and waste of life thing again, then claims shes gonna wear her maga hat tomorrow. She then calls her boss and I call mine.

Now I had fully expected to recieve a write up, or at the very least a verbal warning for reading the headlines out loud. Hell, we weren't even discussing them. Literally listing off the Teskegee airmen thing and the Inspector Generals situation. Well I go home and get a call from my supervisor. Very likely the concierge js getting fired, and I am almost definitely getting fired. My supervisors boss messaged me to not come in to work tomorrow, and that I should expect a call from him in the morning.

Yes, I broke the new rule. I read headlines out loud after the whole security team signing a paper saying we wouldnt. She screamed at me and called me a waste of life. Why are we both being fired, and why am I the only security guard getting blasted?

UPDATE: So my boss called and told me I was essentially barred from working at that site. However, I will not be fired from my security company. They sent me to a different with no negative impacts on my employment record. That said, im taking a $1.50 pay cut per hour. I am on second shift now, and I am only receiving 32 hours a week. Ill take what i can get ig lol