There is a very popular TV show that routinely makes fun of people with a handicap and yet I've never seen it mentioned anywhere.
On The Big Bang Theory, the character of Barry Kripke talks like Elmer Fudd. Even though they never make fun of his manner of speaking, it is done for laughs.
Pretty much everyone involved in the making of TBBT are friends of the DNC. - it 'mostly' avoids politics, but it does have special snowflake status conferred upon it .
Also, its pretty obvious that Sheldon is a high functioning autistic, and his inability to understand basic human interaction is made fun of in nearly every episode. Not a peep from the left. Also, Indians ( as in people from India ) are routinely mocked, as are Jews. - The show also has the stereotypical 'dumb blonde' as well as a dowdy intelligent female.
So - the show makes fun of handicaps, religion, race and women. - And the left says nothing.