Some people have never seen Laurel and Hardy, the Marx Brothers, or Ernie Kovacs; have never heard a Red Skelton routine; or have never read anything by Robert Benchley or Richard Armour.
There is nothing "funny" about obscenity. Humor used to be an art form requiring intelligence and creativity, but people who lack these (or have never experienced them) have to resort to high school boys' locker room language.
It's too bad the Left's "new deal for speech," speech codes, and the like never place any restraints on obscenity and vulgarity. One would think that anyone who could advocate outlawing ethnic slurs and gender-specific pronouns would understand that freedom is not license, but the more control the politically correct Left exercises over speech the more vulgar society becomes. Coincidence? I think not!
BTW, way to go, Michelle!
I'd say that obscenity is not automatically funny. However, obscenity can be used in humor -- and can be used humorously.