To those that are saying they don't see a problem with this mod. Let me put it to you this way. Instead of a mod that turned one gay woman into a straight man what if it turned one black character into a white character?
There literally was a mod like that in Stardew Valley that turned Demetrius into a white character, and it was rightfully deleted from Nexus mods. If someone has that much of a problem with a character being a different race, sex, gender, or sexual identity then they're clearly bigoted no matter what they say to the contrary.
It's gay erasure, and it's bigotry, plain and simple.
Maybe having to go through that hardship of rejecting someone because you're just not into something fundamental and unchangeable about them such as their gender representation will make you have empathy and understanding for queer people and the struggle they face daily where only about 1 in 10 people they're attracted to will be attracted back.
Exposure to queer media helps build understanding and empathy. Erasing it erodes that understanding and empathy.