There are narratives entirely without incels. For example the 2013 movie "Her". Or a bunch of other movies and TV series.
The entire TV series "Westworld" is exactly about this.
Also the picture in the community of hobbyists is quite more diverse. And I don't see science reducing it to that either. I'm currently reading a long paper about chatbot ethics. There are more comprehensive articles like "The man of your dreams" or "I tried the Replika AI companion". But I've heard the narrative you described, too. I'm not sure where you'd like to go with this conversation... I don't think it has anything to do with miscommunication. I see people having narrow and uneducated perspectives on all kinds of things...
Is there a broad disapproval? I can see how it's a controversial topic and kind of taboo, you probably wouldn't disclose this to your family, friends and co-workers. And it probably can manoeuvre you into a corner and make you even more lonely. But the same applies to playing video games or other hobbies.
And the big tech companies also are very cautious about AI companions. OpenAI, Google etc all cut down severely on this use-case. They put quite some effort in so you can't use ChatGPT as a friend or antropomorphize it.
Regarding "incels": I think there are two or three big articles about that, which I've read. "Men Are Creating AI Girlfriends and Then Verbally Abusing Them" comes to my mind. In the end I can't really empathize with incels. I don't understand or "feel" their perspective on the world. They do all kinds of harmful stuff and brag about it online. I'm not sure what to make of this.