@irontoenail - My problem with defining all video games as art is not that they contain censorious material, but that they are often very generic and basically slapped together for profit.
You can make the argument that anything is art, in some sense, but most artists wouldn't really consider a collection of stenciled images to be high art.
There are many talented independent games producers who are pushing the boundaries and there are many amazing commercial game makers who are refining the current definition of the genre. In general, I would call these people artists. But those makers who are just putting together a product for sale don't really qualify in my opinion.