That lady wasn't a Karen. That women is legit mentally ill, most likely with a hint of schizophrenia.
Eh, I saw no signs of schizophrenia. I'm not even sure I saw any signs of mental illness. I see a major stress break, but she's coherent (believe it or not), not disheveled, is not visibly reacting to any stimuli that isn't present, and her affect seems to match her mood. She is clearly not in a good place at all and is losing it. And while there's obviously the possibility that there are things I'm not seeing in the video, I wouldn't recommend using words like schizophrenia on people like this. Yelling in public and throwing a huge religiously slanted hissy fit is not, itself, an indicator of schizophrenia. At least by itself.
Just looked it up. She also doesn’t meet DSM criteria for Karenhood. Unless, of course, her name happens to be Karen.