Why anything related to dark, black is bad?

Don't get me wrong. Let me explain. We always referring bad things something related to dark and black such as black magic, dark secrets even yin the element color is black. Meanwhile, the good side is always related to white things. Maybe it looks pure, pristine like white clothes, white magic, and yang (contra to yin, yang is white and good).

Maybe dark and black looks like a stain and dirty but what about black skin color?

I need serious explanation.

What makes the color looks so bad? 🤔