I should effortpost this (you know, like all my other broken promises) but the success of the current :adventure-time: with luigi-dance has the same roots as Occupy and Anonymous. Memes driving collective action goes back to 4chan's /b/ board that pioneered the horizontal, decentralized, multi-city protests with Operation Chantology. Occupy and the Arab Spring were both hyped by Anonymous at the time as well, when they were flying high with (Lulz|Anti)Sec and DDOSing everything.

It also explains why these movements tend to fizzle out. Memes are fun when everybody is on board, but the meme eventually goes stale and replaced with the next. Rightwing success is less about competence than their ability (and infrastructure) to "force a meme" while others must rely on organic virality. The above "Occupy Mars" is a perfect example of a forced meme and the infrastructure that supports it because nobody else talks about it except Milhouse Musk.