It's not about being funny in that way. It's about countering bullshit and unfortunately it can only be in small bite sized bits and to make those that spew that garbage be aware constantly it's not accepted by others by asking the question.
Odds are it's those on the fence that can be swayed.
For the rest it's a form of Chinese water torture that will eventually get through but like you say most that need to hear it won't and they'll move on to things like adernochrome and liberal baby eating.
Speaking of that, it's odd those for having a choice to have a child or not would also eat those babies? Why would they want to not have them? It's a steady diet of them if they are forced to have kids they don't want?
It's unfortunate stupid logic questions like this are the only things that jar them enough to either act in rage or dismiss it all together in a flight response but it did chip something in the process.