MacDonald’s CEO Chris Kempczinski is being widely mocked online for a video he shared promoting the fast food chain’s newest burger, the Big Arch. “The Big Arch might be my new go-to lunch order. Who else is counting down the days until it’s in a store near you?” Kempczinski says in the caption. “I love this product. It is so good. I’m gonna do a tasting right now, but I’m gonna eat this for my lunch, just so you know,” he says in the video. He goes on to list the ingredients, such as a “unique” seeded bun before taking a miniscule bite. Commenters have mocked him for taking a...