J2 advice needed

Howdy!

I took the plunge into overemployed in September and am so glad I did. Finally paid off all my credit cards and it feels so good.

I'm running into some trouble with J2 and would like your advice. Ever since I started J2 I knew it would be short lived once I got the hang of it, The culture is toxic and they work employees to the bone like a call center would. The pay is better than J1 and J1 is very little in the time and effort department, so I've just been taking it whilst looking for a replacement. There's very few meetings, but there are many random video calls throughout the day that you are expected to answer without notice. No one is polished, and I don't think a single middle or senior manager has any formal management training. Absolute Boomer management mentality everywhere, which sucks, but also means they're susceptible to corporate politics, which I've been using to my advantage. There's been signs that the company is struggling as a whole.

My manager recently called me out of the blue and just laid me out to dry with a huge list of performance issues. Some of them are understandable, as I have not been very motivated lately, but a significant portion was purely hyperbole or a miscommunication. She then sent me a long email summarizing the notes on the call, which you can bet she CCed her boss and/or HR on, and every single point was exaggerated to the point of being false. She is suspecting that I am not at my desk because there were two calls that I did not take in the past month and one message that I took 40 minutes to reply to. Micromanagey, I know. But that's the culture. Everyone video calls you out of the blue daily and you are expected to take 100% of the calls. God forbid I take lunch or have gastrointestinal issues.

How should I quit J2? Should I keep performing poorly until they fire me, which will be maybe a week or two and possibly risk retaliation from my manager, beat them to the punch and put my two weeks in, be vindictive and reply to the email CCing her boss and HR calling her out on her bullshit with documentation, quit on the spot to make a point, or something else?