There should be no line drawn on jokes comedians make.
Comedians need to avoid sensitive topics.
Comedians should focus on being funny, and not too focused on being offensive or not.
Alsheikh, Sara. “Comedy – Where Do You Draw the Line?” Shark Attack , 13 Sept. 2018, https://shssharkattack.com/12416/oped/comedy-where-do-you-draw-the-line/.
It’s impossible to please and satisfy everyone who watches stand-up comedy performances. Eventually everyone will get offended by a joke at one time or another. You need to figure out what will please the majority of your audiences and build on topics from there. A lot of comedians have said that they don't care what people say they will stick to their script..
Little, Laura E. “Laughing at Censorship.” Digitalcommons.law.yale.edu, Jan. 2016, http://digitalcommons.law.yale.edu/cgi/viewcontent.cgi?article=1450&context=yjlh
The first amendment protects the freedom of speech for all, including comedians. Censorship is not something that should be put on comedians. The author of this article is against any restrictions to speech in general.