Stop the fetish

After reading a comment from"I want to be you, just for a day" (idk if it's the correct title) shortly resumed: I wish the 2 fls where gay men. I was quite puzzled.
What's up with putting mlm fetish everywhere?
And... Why do it to yourself? Why read a mlw romance to ship not even a side charachter but the MC in a mlm or wlw relationship. It is more heartbreaking than shipping the MC and the 2nd ml, not happening. At least 2nd ML sometimes get a nice plottwist.
And fr is there anyone shipping MC as mlw couples in bl or gl comment section?

It makes me wonder. Can friendship in these stories (for MC) still be a thing ? If not family, gotta be a ship