I think Mr. Lewis has it right. There's no reason women CAN'T be funny. The reason people tend to think women can't be good comedians is because we simply never see any. We see lazy, painfully unfunny women saying dirty words on stage, as if profanity equaled humor for anyone over the age of 13. But it didn't used to be this way, as another member... I'm afraid I forget who... pointed out to me a little while ago in a thread on a related topic.
I'd like to link two videos here. The first is a female comic from the 60s, 70s, and 80s called Phyllis Diller. Here she is rattling off 5 minutes of nonstop fat jokes, most of which any good red-piller would be proud to have in his arsenal.
In addition to the jokes themselves, note the effort Diller takes in her appearance and mannerisms. She's spent an immense amount of time to craft a unique persona that goes in line with the jokes she's telling. Her ridiculous flashy clothes, cigarette, the way she turns her head and uses her hands, it's all rehearsed to make her as funny as possible. She has a voice cadence very similar to a radio host; rising and falling, changing in pitch constantly to keep the audience interested.
Now here's Sarah Silverman, who is mentioned in the linked article by "A Jason Tabrys" as one of the funniest comics he's ever seen. This video is the second or third hit for "Sarah Silverman Standup" on youtube, and it's a routine she did at a TED Talk (Which is your first clue right there.)
Note first that she's wearing whatever random crap she threw on that day. Her voice is low and hesitant, almost as if she's scared to be there. Lots of "ummm" and "aaa". If you can stand to watch long enough, you'll see she eventually starts playing the guitar with a level of skill that's honestly embarrassing. Her "routine" is simply her saying things that she imagines would shock somebody, somewhere, who is probably a methodist minister from the 1830s.
Compare the first couple of sentences from each of their routines.
Diller: "And now the most horrible thing that could happen to our house is on its way: his mother is coming to visit. King Kong with an overnight bag. How can I describe her? Jello with a belt. When the old bat sits down, it takes five minutes to settle. (Burbling Jello Sounds)."
Silverman: "I am 39 years old, and I still wake up, every morning, so excited that I don't have to go to school. It's the little things. You have to appreciate the little things. And uh... one of those little things is... oh fuck... communication. (Nervous chuckle) Honest communication. It feels good to be honest."
And she goes on in that vein for a while, eventually getting to a punchline about her boyfriend spanking her.
And this is, as near as I can tell, the face of female comedy today. She's certainly the only one I've ever heard of. She's horrible. By any reasonable standard a giant vaudevillian cane should be stretching out from the curtains to drag her away.
But just because she isn't funny, and anybody like her isn't funny, doesn't mean that women can't be funny. It just means that an act that consists of nothing more than swear words and cheap titillation (and seriously, if you're getting your titillation from a 39-year old woman talking about her sex life, I need to introduce you to my good friend redtube) isn't comedy, can never be comedy, and SHOULD never be considered comedy. The fact that this woman, and anybody like her, is allowed within a 300 yard radius of a microphone is proof that our civilization is damned beyond redemption.