why must the media use ship names

"Not everything is gay"/"Stop seeing the gay in everything." - People when they hear about same sex OTPs

Yeah, you’re right. Not everything is gay. It rarely is. Even when two characters in a TV series or a book series have great chemistry that can be developed in to a healthy LGBT relationship,they’re conveniently given opposite gender love interests. (Must I name names?) Why? Because not everything needs to be gay right? I mean it’s not like 99.9% of the relationships in the media are straight, right? I mean it’s not like LGBT relationships exist, right?