I'd like to propose an experiment related to one of DC's failures on the sexuality front.
Batwoman's same-gender marriage was vetoed by DC, but what if everybody acted as if it wasn't?
Hear me out. Sherlock Holmes, until recently, was iconically seen with a deerstalker hat, which had its origins in the Basil Rathbone adaptation, despite not featuring anywhere in the original Conan Doyle works at all. Still, through cultural osmosis, it became an accepted part of his character. Have deerstalker, will Sherlock. People forgot that he didn't have this in the original literature.
My proposal is this: What if all the fans, or even just as many as can be convinced, simply acted like the marriage had gone through and Batwoman was happily wedded to her sweetheart? If it was done enough by fans, would the writers (perhaps when the character was handed over to a new writer) perhaps simply forget that the character wasn't actually married in the first place thanks to executive meddling?
If we change the perception of the character now, could it influence canon later?
If done well enough, would it essentially force DC to accept it? (Yes, they aren't the most progressive of companies, but perhaps it can be explained in terms of bottom line)