The meme community generally accepts that "as long as you credit source, you're golden". This was a big issue with the Fat Jewish(among others) years ago, and he hand to bend the knee and apologize for joke theft and start crediting.
FuckJerry is just the perfect shitstorm of bad optics. They put out an image of douche-bro behavior (I mean, look at their name) and one of their biggest claims to infamy is being the marketing team behind Fyre fest. They're whole response to every scandal has been "you're a jealous idiot, and our legal team is more powerful than yours so eat shit".
What we're seeing right now is the community holding someone accountable. You can argue fairness, or free speech til the cows come home on both sides, but in the end the ball is rolling and we just have to wait and see where it stops.
Also >>"Why are people acting so entitled? Seems to me they just saw the huge revenue pie and want a piece."
Yes. Why would these entitled CONTENT CREATORS want to be compensated by people using their content for commercial gains?! What a bunch of entitled babies. They should be happy for the exposure. /s