> Nowadays we know that sexual orientation is something that is neither set in stone, nor absolute At best, the only thing we know is that this is true for som

> Nowadays we know that sexual orientation is something that is neither set in stone, nor absolute At best, the only thing we know is that this is true for some people. You say it yourself: "people are known" to change / have sexual partners of both genders -- because such people are an exception! These people are a minority, and you really can't generalise and affirm that this is the rule for the majority.