As a women reading m/m romance. Let me give my experience.
1. There are many good-looking male charaters in yaoi manga/game/anime
Yaoi producers tend to use a lot of handsome boys in their work, that is extractly girls want to read and enjoy. After all, we can enjoy double numbers of good-looking men in BL manga. :-P
2. The fear of sex between girls and boys
Girls also need to find ways to express their sex impulse, but for those who fear of seeing the picture of girls making love with boys, they turn to BL manga/anime. Well now I am perfectly OK with the scene of M/W doing sex, but sometime I found it unacceptable to watch some AV for those male are so rude to the girl in the movie:-0
3.BL provides a utopia-style world for romance
Sometimes I found girls reading BL manga or watching BL anime are not merely because they want to see two handsome men filerting with each other, but girl really want an imagination of 'pure love'. BL is such a ideal world, at there people are extremely tolerent to men's love:-D, even when they confess their sexual-oriantation to their parents, they just seems perfectly OK! :-D And some 世界観 of BL just based on a world where everyone love menXD
4. BL genre is a highly developed style
I still remember when I started reading yaoi work, it was a fiction. At that time, most of the Yaoi seems to end with very sad ending( either of the charater may die or they eventually will departure..) That is just posed a great impact on my heart T_TOMG
Started from the tragedy, then the Yaoi has more and more type of work, comedy, family, horror, war, SF...
5. Just call it jealousy!
Well, I just don't like other girls filerting with the men of my type! (Just kidding, haha)
good looking boys and sex. yep
Why is food more popular or liked than drink?
It depends on each person preferences and where u ask. Starbucks sold more drink than McDonalds.
This site is more dedicated to yaoi but there are other sites that favor yuri....as a side note. When I first entered the realm of Manga and anime I accidentally saw strawberry panic and was. Well slightly traumatized .... years later I got into a shoujo ai Manga about a model and her girlfriend that loved donuts. I have yet to find it but yea
i get it u like wendys.
Don't play Pokémon Go while driving
Why is yaoi more popular or liked than yuri?