When Chris Rock said -

Now we've got a lot of things, a lot of racism in the world right now, Who's more racist? Black people or white people? Black people, you know why? Because we hate Black people too! Everything white people don't like about Black people, Black people REALLY don't like about Black people.

(notice how the transcriber capitalized Black and not white?)

When Dave Chappelle said -

David, there’s no way… that you can ever say the word… “f a g g o t” on our network.

I didn’t know I did anything wrong. I didn’t try to defend myself. I said, “All right. Fuck it, I’ll take it out. Have a good afternoon.” And as I was leaving, it occurred to me. “Hey. Hey, Renée, quick question. It’s just a question. Seriously, I wanna know. Like, wh-why is it… why is it that… that I can say the word “n i g g e r” with impunity… …but I can’t say the word “f a g g o t”?” And she said, “Because, David, you are not gay.” I said, “Well, Renée… I’m not a n i g g e r either.”

Versus the frankfurt school - https://youtu.be/97rmBrFSYgM

Were these comedians communicating something worthwhile and using it's shock value to get their message across...? Or were they subverting?

I don't know who created the meme but they could verywell be gay themselves and I'd like to think they just wanted to let YOU know that THEY know the difference.

gay adjective (HAPPY)

old-fashioned
happy:

"We had a gay old time down at the dance hall."

vs

faggot noun
old-fashioned
sticks of wood, tied together and used as fuel for a fire

"When witches were burned, men accused of being Gay were dipped in oil, set afire, and used as the faggot to light the burning pyre."