I don't think Stan Lee's death was a big deal.
Why don't you think his death was a big deal?
I've been reading his work for a long time and I just don't think it's important that he's dead. People die all the time.
It's okay not to care about his death. Not everyone is going to care when someone dies. You should still be respectful of the people who were upset by his death though.
Screw that. People who are sad about this are dumb.
Just because you aren't upset by his death, doesn't mean that nobody else can be upset about it. Everyone reacts differently. If you want people to respect your feelings, then you need to respect theirs.