Here’s something of a riddle: What’s the gloomiest thing you can talk about in comedy? The answer: The state of comedy. It’s a touchy subject, especially in a more modern, restrictive, and “politically correct” climate that legendary comedians like Ricky Gervais have long railed against due to how much it restricts comedy. And while he didn’t go nearly as far as Gervais typically does, you can add longtime Hollywood star Vince Vaughn as yet another person who is not a fan of this restrictive, overly-PC environment. In a wide-spanning interview with Variety, Vaughn broached the topic of the com…