As a guy who has been on stage telling poorly-executed jokes about childhood tragedies, I know a few things about comedy.
One thing I know is that some people are funny. Some people are not. I would never venture to say that an entire gender isn't funny, though. That's incredibly stupid. Here's an example: John Belushi believed women weren't funny, and he worked with Gilda Radner. He also thought injecting cocaine and heroin into your veins at once would be a fantastic idea with no downsides, so there you go.
When I hear from guys their reasons that women aren't funny (usually in their stand-up routines) it usually boils down to "Women aren't funny, just look at (a few female comediennes)! Yet people get mad at me when I say that! It's not fair, MY OPINIONS SHOULD BE UNCHALLENGED!" Then they talk about how ugly they look, while they themselves have a beer gut the size of whatever liver cancer tumor they currently have.
Hey, you know ditcto simliciter, guy? Yeah, all of those women you named could be unfunny, by chance. Highly unlikely.
Also, unfunny according to....what, the strict laws of comedy, as first written down in the Comedia Principia in 1781? Oh, no, wait, that doesn't exist because comedy is an art form and not physics.*
Is it ok for you to not like certain female comics? Yes, of course. I hate so many male comics. I think Jeff Dunham is a blight on humanity, but he's a multimillionaire so not everyone agrees with me on that. I don't go and say that every male comedian is Jeff Dunham. Though if they were, the comedian lobby in Washington D.C. would be much more powerful.
So, I've gone and exposed myself to female comedians.
Okay, wait, "exposed" is probably the wrong term. I've watched them, listened to them, bought albums, etc. I've treated them like any other comic. There's a lot of guys who just don't want to take the time to do that. They've already made their judgement and administered their comedy justice. Women just aren't funny to them, AND DON'T YOU DARE CALL THEM SEXIST! I mean, they know that being sexist is "bad" but they don't understand what the fuck it means. Or care.
Point is, stop saying "women aren't funny." Stop being a dumb asshole.
* Yes, I realize that some mathematicians would say that physics is also subjective. Shut it.