The NPC jab must have really stung, because the Democrats are always looking to throw a barb back at Republicans.
In this case, the "NPC" meme applied to Democrats acting like lemmings, echoing obvious lies like an Eliza-bot that's coded to repeat what it's told, even when it goes against reality.
Trump supporters are reacting to provably positive things in real-time, but some Democrats have long knives, never letting go of a past "I've been wronged" vendetta to wait for the opportunity to throw it back in the face of someone else.
They're still NPC wrong, but it makes them feel better doing it.
-PJ
The left is caught in an emotional loop. Rather than face the fact that they messed up, they double down. This is to protect their feelings. It’s their primary motivation. They wrap themselves in a false morality but they’re cowards- choosing the absurd over reality to protect their feelings.