Answer :
The missing phrase in the statement described above is internalized heterosexism
Internalized heterosexism is the unconscious acceptance of the belief that heterosexuality is the only normal and natural sexual orientation. It is a form of self-oppression that can lead to feelings of shame, guilt, and self-doubt in LGBTQ+ people.
The fact that individuals are not expected to "come out" as straight demonstrates that heterosexuality is seen as the default sexual orientation in American society. This is because heterosexism is so deeply ingrained in our culture that it is often invisible.
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