As a former San Francisco comedy club owner, Cantu has produced shows with Robin Williams, Dana Carvey, Jerry Seinfeld, Paula Poundstone, Sandra Bernhard, Rob Schenider and dozens more. You teach comedy writing, so I assume you believe that comedy can be learned.
Many people feel that the ability to be funny is a natural skill.
Or some other nonsense that seems to indicate some are born funny and the rest of are out of luck. This is sheer bull. Being funny is a skill. Like all skills, it is something that can be learned. Just like you can learn to play golf, you can learn to paint, you can learn to cook - you can learn to be funny.