To understand why crypto became popular requires understanding that there was a massive anti-America (and by extension, anti-USD) sentiment in the 00s and 10s, mostly on the heels of America's various wars in the Middle East. For some brief period of time, America was the evil imperialist global enemy number one, even in the eyes of many American people. There was practically a patriotism crisis in America around when Trump first came to power.
Russia's invasion of Ukraine completely hard-flipped this overnight. America once again became the good guys of the world, and with it died any serious movements to disrupt the USD and greater financial status quo. More critically it also started the narrative that China might do to Taiwan what Russia is doing to Ukraine. It basically brought the world back into the late-20th-century good guys in the West versus bad guys in the East bipolarity.
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I think a lot more important for understanding crypto is learning the first bitcoin was minted in January 2009, months off of the heel of the Lehman Brothers filing for bankruptcy, and more notably the "start" of the 2008 financial crisis