Some describe their sexual orientation as straight. Some as gay. Some as bisexual. Some as queer. Some as asexual. And many others.
In Plato's time, the cultural attitude toward sexuality was so different, that sexual orientation as we know it was hard to describe. All we can say is that Plato was known to have sexual affairs with both men and women, which was typical of the time.
No. Being gay is a sexual orientation. Ethnicity is determined by where your ancestors came from, hence being Asian, Caucasian, African, etc.
The character of Flapjack is not written with sexual orientation
Nothing is known of her sexual orientation.
Soko's sexual orientation is heterosexual/straight.
The Joker's sexual orientation is not written into his character.
The fictional character of Yoshi is not depicted with sexual orientation.
The SNL character "Gilly" was not written with sexual orientation.
Matt Evers' sexual orientation is not known.
The sexual orientation of David Rodriguez is unknown.
Frankie Muniz has not stated his sexual orientation.
I think you mistake "sexual orientation" with specific types of orientation. Sexual orientation is a part of every humans make up. A person can not have a sexual orientation. Your sexual orientation is what makes you gay, straight or bisexual. Homosexuality IS illegal in some countries. You can outlaw a behavior but you can't outlaw an urge or feeling.