But regardless.. we canno't make "autism day" "cancer day" sooner or later we will have "halloween for muslims"
I see what you're saying, but wearing blue tomorrow (well today, it's 12:05 at my house now), isn't for religious reasons (for some, Halloween or "All Saints Day" is a religious celebration). Wearing the blue to raise awareness about a problem that people face isn't celebrating it. If I walked outside and everyone is wearing blue, I would ask someone and they'd tell me. And I would probably look the issue up to learn more. People won't be having "Cancer Parties" like "Halloween Parties". It just makes people think about the issue and what they can do to help those who need it.
I'm no expert, but that's what I think. Others have explained it better.