No, I suggest you read and understand the definition of "myth" - which is a traditional story or a view commonly held.
. No one I know holds the view that married people do not have sex or have sex any less often than non-married people. So there is no such myth to begin with.
So it is nonsense to try to argue against a non-existent "myth".
That's why (among other items mentioned), I called the article "crap".
A lot of the myths contained in here come from Hollywood’s version of what they think marriage is.
Of course, a lot of the writers in Hollywood are not exactly the exemplars of stable, married couples. I know they exist, but lets be real—if they made movies that reflected real life, no one would go to them.