Video games are not interactive art because art is not interactive. That which is called "interactive art" is just an activity, like going to a theme park. No one would argue that theme parks are art; they are getaways where one can go to relax and have a little bit of fun. People don't ponder the meaning of a theme park or value it for its aesthetic value. Advertisements and posters may adorn walls and signposts, but these are not art either.
In the same vein, video games are mindless distractions from everyday life. They are an activity in which one can relax and let go of reality for a while as they immerse themself into the game. There is no artistic impact other than pretty graphics, which, just like the posters at theme parks, are only there to convey information.