Here are some that I can think of:

• Michael Richards- used the n-word multiple times in response to black hecklers during a stand-up performance.

• Roseanne Barr- said Valerie Jarrett, who is partially black, looked like a Planet of the Apes character.

• Gina Carano- compared Joe Biden's policies as President to the Holocaust.

Even then, Carano will be working for The Daily Wire and Barr was doing a stand-up tour prior to the coronavirus pandemic. Also, Richards has made or still does make a lot of money off of Seinfeld and probably could have had a career like Jason Alexander (making the rounds as a television guest star), if he wanted.