Straight washing

This is something that constantly bothers me , which is also why I don't try out new bl or yuri mangas to read anymore as it kinda makes things unrealistic at times... If you dont know what straight washing is, then some examples that we see often would be when either everyone is okay with homosexuality (yeah not so true in some asian countries such as Korea, Japan, and China---) , every character is gay, the couple are open to their relationship in public and never get discriminated, that whole uke and seme dynamic where the uke is thin and small (looks like a child basically and not a man) and the seme is all big and manly I guess.... Oh and the unrealistic sex parts we see sometimes.. Not a big issue I guess but still-