Homo = Human
Sapiens = Clever, reasonable, wise...
Only because gay people can get married it doesn't mean that it's "normal". Neo-liberalism want it that way but it's not correct.
Normal is what the nature was actually aiming at with species the nature created. From a reproduction, therefore nature, perspective, normal is that inside our species "homo" (but also many other species) two different types have to come together for reproduction. Homo sapiens are species which lived in groups since ever which then progressed in naming that group more specific "family". That's why two types of homo sapiens (we call it men and women) exist.
Don't understand be wrong. I'm not saying it's something bad to be gay. It's just a "failure" in that structure. It means it's a failure in nature's system because nothing is perfect, not even the nature. We are all homos, which means we all are humans. Difference is whether we are also sapiens.
I still think that gays should have the same rights as heteros. But we all have to understand that it's okay to be not normal in terms of sexual orientation. But stop this bullshit saying that being gay is normal.