Then why are you calling it "trans ideology"?
Because not all of it is restrictive or negative. A lot of it isn't even "Girls can't Y". A lot of it (maybe most of it) is just "Girls like X, boys like Y" stuff. But that's still putting attributes that have nothing to do with biology onto gender.
So this indefinable, subjective view of what makes someone a "man" or "woman" was made up way before trans people had anything to do with it, and mostly everyone is still pushing it to some degree.
Who invented it is irrelevant to the point.
The point is that trans people necessarily use traditional gender roles and behavior in their daily functions--they have to adopt traditional gender behavior to be "trans" -- but then they (or at least the ones holding the microphone) disavow gender roles and behavior in public ideological discourse.
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