[quote name='UncleBob'] I'm talking about the actions of what people do with the photos.[/QUOTE]
But those actions are based on the depictions in the photos. And further, most of those actions are deeply rooted in the past.
I don't know a single person who would be anti-homosexual that doesn't have built in residue based on a lot of reasons, justifiable or not. Nor do I suspect that they have any other idea BUT rabidly flamboyant depictions. And FURTHER I don't expect them to change that
idealized version, even if confronted with a ton of counterexamples showing more "normalized" gay people.
Meanwhile, when I see Republicans saying we're a socialist state with Gestapo and indoctrination, I can't help but laugh (and ultimately get depressed) because I know dumb idiots are going to buy into BIG WORDS AND SCREAMING. They aren't doing it for the same reason of simple recognition, like you purport by comparing them to gay pride parades. They are doing it to oppress and rally support by suggesting that THIS COUNTRY IS GOIN' DOWN, AND NOT IN THE GOOD CHRISTIAN WAY.
Edit: It's funny that you assume that these people in gay pride parades are dressing up in the manner they are in order to - in your own words - "take people on the extreme fringes and try and convince the general population that the extremes are the norm."
That's such poor reasoning. None of those people in those photos think they are representing the entire gay population. You know what they are thinking? "Man, this parade is great, I'm safe and secure A FEW HOURS OF THE ENTIRE YEAR, and I totally have the ass to pull off this latex feather costume."
At no point in their minds do they stop and think that they are the sole proprietors of gayness. None. They merely think of themselves as a version of it. And they are having fun because the rest of the year, they have to bottle up their entire identity in public from fear and - unfairly - shame and guilt.
Meanwhile, Congressmen

sticks think they ARE speaking for their entire platform, and seemingly none of their colleagues say otherwise. So that's a lot of fat acceptance on their part. Fox News jumps on death panels and birther allegations WITHOUT QUESTION, and rabble rouse it for months.
The coincidental - or perhaps ironic thing - is that you can probably find tons of photos of screaming red faced dipshits where they were talking about gay rights, and how they are going to destroy this country.
When was the last time you heard a Republican opine that "my parents disowned me once they found out I thought Reaganomics was a good idea" ?