homophobe

The prefix of "homosexual" is not the Latin "homo-" meaning human. (Otherwise "homosexual" would mean "human-sexual" or "bisexual" and "heterosexual" would mean "other-than-human-sexual". Bestiality?) No, the root is the New Latin "hom-" or "homos-", meaning "same." Károly Mária Kertbeny first coined the term homosexual in the late 19th century as a neutral term to distinguish between people who were sexual with the other "hetero-" gender, from people who were sexual with the same "hom-" gender.

In either case, "Homophobe" would mean "fear of humans" or "fear of what is the same," neither of which fits its actual usage.

Heteronormative, that is, people who hold that there is something "unnatural" about same sex relations; and

Heterosexism, since homosexuality can be considered a discrete gender and a person prejudice against a gender is a sexist, a heterosexist is someone who is favorably biased toward the heterosexual genders (male and female).