As I have written in the past, homosexuality is an adaptation, the product of a multitude of social and psychological factors.
That's a novel use of "adaptation". Why would an organism obtain attributes that would make the environment hostile to it?
I believe we are all born with a capacity for bisexual expression, which may or may not evince itself, depending on circumstance.
I completely disagree. Some people clearly do not have the "capacity for bisexual expression", except at the meaningless level of physical ability to engage in sex acts.
Even among those who have a wider range of erotic response (even latent response), the number of cases in which it is a stable proposition for actualization are few. Experience suggests an existential need to find a "dominant sexuality", just as is the case with many other "spectrum traits". To try to 'have it all', more often than not, ends up in disability, not full expression, through an exhausting bit of temporizing or balancing.
Age segregation in crowded modern schools produces these combustible brews of provocation and shaming.
Is that true? My first response was, Camille obviously never had fights with her older brother or sister ...