You can argue that anything is an art form, since what art is is debatable in itself. If an artist says it's art is usually all it takes. So here's an advice for you, since I'm sure you wouldn't be the first to argue something similar, look for a similar paper from a trustworthy source and list is in the references (use quotes where applicable) = +100 credibility.
Also your poll might be just slightly biased lol, asking if games are art on a gaming forum.