the mexicans didn't overcome the media. mexico's status at the periphery of the global north ensured that enough of them had shitty enough material existences that their protests took on a genuine form and it galvanized the public to try voting for morena instead of pri or pan like they had been doing for almost a century by that point.
in fact: it was social media giving attention to these protests that made the younger mexicans aware that they weren't alone in their suffering and they turned out in droves to vote like they sometimes do in the united states.
"overcoming the media" is another manufactured threshold like that other manufactured threshold of tens of millions of voters and only serves to re-enforce this self fulfilling propaganda when something a simple as basic media literacy will do the trick.
the global north has come to recognize the impact that social media has on the youth and that's why isreal & the united states now have full control over tiktok and why europe is trying to impose age verification mechanisms on social media.
waiting for some mythical time when people stop relying on the media for change to happen is no different than repeating other fallacies like spoiler-voting or throwing-your-vote-away.
it happened in our lifetime under the same conditions and it's living and breathing at our southern border.... for now.