The movie shows a woman's ghost who abducts men after stripping off their clothes and it's supposed to be funny and justified because she faced injustice for being a woman in her mortal life.
We are supposed to feel bad for her because of that? So what if she didn't get respect because of being a courtesan? That gives her right to kill any random man?
Apart from this, the movie tries to show a parallel of how men face problems like women because of Stree, like they can't roam outside late at night, if they do then they should be in groups, and how they have to live in constant fear because of Stree.
Men facing problems like women are passed off as humour. So the movie tried to tap into the audience mentality of toxic masculinity to get laughs.
Also this theory of Pankaj Tripathi's character in the movie that Stree doesn't take anyone "forcefully like a man". She takes their "permission" by asking them, and no man could ever say no to her other than Rao's character.
Metaphorically this meant that women don't/can't rape or force someone to have sex like men....and men could never say no to sex. I don't need to tell how twisted this mentality is.

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