*sigh* Heterophobia
I responded to this in a different post, but im going to copy my answer from there and paste since some think Heterophobia isn't a real thing because straights aren't oppressed.
Heterophobia is the discrimination against straights BECAUSE they are straight. It doesn't mean we are being oppressed when we use the word.
If a gay can hold prejudice and hate towards someone BECAUSE they are straight, then its considered Heterophobia.
Just because it doesn't have the history homophobia has behind it doesn't mean it isn't any less real. Because by definition, Homophobia is hating against someone because they are homosexual.
By definition, Heterophobia is hating against someone because they are heterosexual.
Denying Heterophobia is denying the fact that it is possible to discriminate against someone specifically because they are straight.
Homophobia does not mean being oppressed. However, with homophobia throughout the masses, it is usually associated with oppression. Heterophobia does not mean being oppressed either. Homphobia has just been widely associated in as oppression, because those who are homophobes oppress. However, that does not necessarily mean Homophobia means oppression, because it does not.
So yes, it is real. Saying it isn't is like saying discrimination against white people isn't racism.
TL;DR: Homophobia does not mean being oppressed, nor does Heterophobia. It is legitimately possible to discriminate against someone for being straight. Just because Heterophobia does not have the same history as Homophobia doesn't make it any less real.
Hopefully this brodens your understanding of both phobias, and even allows you to do your own research.
(On a side note, goddamn did oppress come up a lot. )