Do you guys think there's a particular reason baseball is so prevalent in BLs?

I replied to a question like two weeks ago saying "Baseball is gay and basketball is straight" and what i meant by that is how prevalent baseball is in bls and basketball is shoujos. Ive been thinking about it but other than the kind of funny coincidence of the terms Pitcher and Catcher being used to mean top and bottom i can't think of what could be the reason these sports are chosen for specific romantic genres