It's a shame that you feel this way about Luca, but ironically enough, this character was created in collaboration with our writer's queer friends, who proofread the entire story and provided a metric ton of feedback to make him exactly the kind of character they vibe with, while also sticking to his original concept. It's a borderline self-insert, considering how many traits from them Luca inherited.
While you might have a point, this is an NSFW game, which by definition is built around fetishization of certain stereotypes. You could say the same about any MILF routes that they feteshize the middle-aged women, and won't be wrong. You are supposed to be equally as aroused, as you are engaged in their story.
The fact that Luca was the first male-on-male route we added didn't affect our plans to implement cowboy's story, it was simply a safe bet to check the waters of how many people in our community would be interested in playing this type of content.
Saying that the "gay character we added is the wrong type of gay" is pretty homophobic by the way.