Or why all of the non-perishable food items smoke so much weed. Or why Frank keeps wanting to violate Brenda. They'll be confused about why the bagel and the pita bread are bickering over 'holy' lands. It's not what you would expect out of an animated movie about sausages and buns hoping to get chosen off of the grocery store shelf, but it's the subversive approach that Seth Rogen has brought to previous comedies, and it fits the mold here. But the main message to take away from Sausage Party has to do with religion, religious beliefs, the belief in the afterlife, and how one person's religion is better (or worse) than another person's individual religion. Well, this one isn't quite as intense, because MOST animated movies have overarching themes that appeal more to the parents in the theater. You still need a reason not to take young ones to Sausage Party? Man.
The Movie's Themes Will Go Over A Kid's Head