No one who shares all my interests?

It's really hard for me to find anyone who shares the same interests as me. Music, for example. I have a wide variety of music I listen to, from clic rock to death metal, a little funk and there has been some rap that I enjoy. But a lot of people take me as crazy for likeing a multitude. Another example, I really enjoy learning about the zodiac and birth charts, etc. No one I know, except 1 person, even knows what a birth chart is. Why is it hard to find people like me?