I think this is still a skills issue, the question is "what skill?"
You have a passionate interest. What you don't know how to do is talk about it in a way that shares why it is so fascinating to you. That can be worked on. It'll take practice, including more times where you flop, but you can try to watch how people with other niche interests pull people in and create intrigue and excitement.
Trying to learn this skill for your passion will help you do it more generally; it will make you a more interesting person that people enjoy connecting to.