Cartoons and comics can also deal with real issues – they aren’t all escapist (shown, Michael Ray Charles’ “After Black” and “Before Black”).
I would argue a lot of contemporary art is only superficially about it’s “content” – much of the time it’s about the artist’s celebrity or a clever trick they’ve found (shown, David Salle’s “Tragedy”). THAT’S escapist…
AND, who ever said art has to deal with those issues of life and death?