@RealEyesRealizeRealLies: OK, let me try this another way.
“Whether I fully understand it or not, the source material does seem to speak for itself as an outlet for propaganda rather than representing “all sorts of real lives”.”
Have you actually read the comics you are referencing?
“The platform is specifically being used to voice out on sexual identity issues, and not rather to specifically improve the character.”
In the example of Bat Woman, yes, that may be true (more on this later); but comic book authors and publishers use the hundreds of different characters and titles to “voice out” on many different subjects. Sexual identity is by far the least of them. You would know this if you actually read them. Also, it is clearly your opinion that revealing a character to be gay does not “improve their character”. If it serves the story, it very well may improve their character. Why do you assume being gay degrades their character?
“I refer you to the original quote”
There’s no need to refer me the article again. I have been reading CBR (as well as iFanboy, Word Balloon, Wizard, and Newsarama) since it’s initial launch. I read the article you quote when it was originally published in 2007.
As for “Shifting the sexual identity of Bat Woman” and “retcon(ing) an established character”, let me explain it this way:
Comic book continuity, as a matter of necessity, always changes from generation to generation. Many of the iconic characters have been around for decades. Changing the continuity of the character or their origin happens pretty regularly and “retcons” are very common. There is a need to update the characters to appeal to the folks reading them now. John Byrne famously rewrote Superman’s origin in the 1980’s. He changed it so Superman was the sole survivor or the exploded Krypton. So instantly gone were Supergirl ad the (silly) Super Pets. Was he “voicing out” on issues orphanage? No it was a plot point. And guess what? A few years later, another writer came along and changed it again. Happens all the time. Iron Man was originally established during the Vietnam War. It was later changed to the Gulf War and later still to some vague middle-east conflict. Was Marvel pushing their liberal anti-vietnam bias?
Furthermore, many personality traits and lifestyle choices are often “revealed” about a character that has been around for a while. Religion is a popular subject with comic book writers. Most characters were not created with a religion in mind, but over the years it has been revealed that Nightcrawler (of the X-Men) is Christian and studied for the priesthood and Daredevil is Catholic (his mother later became a nun even). Were these story points pushing a religious agenda?
In truth, their are multiple existing comic book continuities. There are characters that have been around for all of them. There are the Golden Age (40’s & 50’s), the Silver Age (60’s & 70’s), the Bronze Age (80’s & 90’s) and now (the Modern Age). NOTE: The dates are rounded off for ease of use.
In the Golden Age, for example, Captain America was running around killing Nazis, shooting a machine gun and referring to German’s as “krauts”. Today’s Captain America still served in WWII, but huge chunks of his original personality have been “retconned” over the years to fit the times.
As for Bat Woman (Kathy Kane): As I stated earlier, she is a completely different character from Bat Girl (Barbara Gordon). Bat Girl is and iconic established character that has lasted through all the various ages. She is straight. Bat Woman was introduced in the fifties (Golden Age) as a love interest to Batman (to ward off accusations of homosexuality between Batman and Robin as stated in the book Seduction of the Innocent). She did not take off as a character and disappeared almost immediately.
Years later (2006) DC comics decides they would like an openly lesbian character on their roster. Devin Grayson decides to use the long-forgotten Bat Woman character as her template for the story. She is not and iconic, “established character“nor is she a “famous heroine”. She is a d-list character at best. It was practically the same as creating a brand new character (as you suggest) as about .5% of the comic book reading population had ever heard of her.
As Marina stated above, about 3 to 5% of the real-world population is gay. I think it’s only fitting that comic book universe populations reflect that.
If you would like to become better informed on the subject from the actual published material, I’d be happy to recommend some really good collections.