Maybe your approaching it from the wrong viewpoint.Crying doesn't have to be because you feel sad, it can come though feeling empathy, or even joy

I cry every time I see the movie Coco. I've found that things that have to do with grand parents makes me cry the most. I've losed my grandfather on covid's because they stopped treating him to focus on younger people.

Here's an example: https://youtu.be/y02xPRX6vCE?t=1376