It's one of the things I'm not used to in Japan, but I can't get used to being laughed at for something I said in earnest.
For example, when I tell them about the ALS patient I met in the U.S. who is living with a feeding tube in his stomach, or about my contact with people in juvenile detention centers, or about the fact that I saw them go through a lot of painful things like rape and abuse before they became monsters, I get a strange laugh.
I'm always annoyed by their incomprehensible reactions like "Ah... hahahaha...".
I get the same reaction when I talk about something serious about my family or my health (I'm speaking in Japanese, so it doesn't mean they don't understand what I'm saying).
They do not know how to react in serious situation.
日本人関係なくね サウスパークでも辛辣な場面で空気読まずに笑ったりするキャラいるだろ