First, the right is also fawning over Luigi.
More importantly, you’re missing the underlying point of this meme. It’s displayed in the other pieces of text. We wanted Bernie and would’ve been happy to make that much progress nonviolently, but the DNC did not allow that. And “oppression makes revolution inevitable” because there’s no such thing as negotiating with your oppressor. Think of a hostage situation. The people who successfully negotiate away that situation are the police because they are backed with the threat of violence. Those who crave power will never give it up voluntarily.
Technically you’re right that it wasn’t the DNC alone. It was the democratic party as a whole and the media machine they influence. Sure the DNC gave Hillary decision making power after she paid them a bunch of money, and also gave her a special funding agreement. But the hundreds of unelected superdelegates that supported her before voting even started were probably more influenced by party elites than the DNC. And it’s not like they specifically paid for the opinion pieces telling Bernie to drop out. But it’s not actually illegal for a party to rig a primary so we don’t need to do any real investigation into it.