I saw a video of this Bob Nelson comedy routine in the late '80s or early '90s. Found it on YT today, and still laughed out loud at the football skit:
If he tried that today, there would be riots in the streets. It's the equivalent of putting on blackface in today's racially-sensitive environment.
He poked fun at pretty much everyone. I'd can't say for certain how it would play today, but I laughed out loud at all of it.