She did it by appealing to a whole new audience, carving out a new niche. It's composed not only of her fellow lefties who are sick of identity politics, polarization, and so on. There are plenty such figures, and some host podcasts that get as many clicks as hers and Benjamin Studebaker's (What's Left?). But they're not going to hit 10K followers and beyond, because they can't take the leap of faith to interact with people who are not already fellow travelers, and who may even be vilified by their in-group as sub-human.
Here's a recent popular tweet of hers about alienated young white males on social media, who most leftoids would write off entirely, and the only debate would be whether to condemn them outright or just ignore them.
They make frog memes that have fucking nothing to do with racism 99% of the time. Occasionally the vulnerability is so visceral that it will break your heart. Or it would if you could think with your brain instead of your punitive elitist contempt.— Aimee Terese (@aimeeterese) November 1, 2019
It takes courage to pursue what seems like a lost cause, in the hope of a greater good down the line, perhaps that she will not see herself. An earlier post drew attention to her role as being similar to Paul, Apostle to the Gentiles, where she is the socialist Apostle to the Deplorables. And it's bearing fruit! For every libtard fanboy of Chapo Trap House that she loses, she gains two posters of frog memes.
Bernie was meant to do likewise for 2020, but he, his campaign, and his supporters have steered him away from a successful mission to the flyovers. That project is not bearing fruit -- his support is half what it was in 2016. He lost the libtards, but did not appeal to the deplorables to shore him up when the yuppies dumped him for Warren.
Where Bernie faltered, Aimee has been steadfast and tenacious. Reminds me of a song by another Mediterranean Australian, "On a Mission" by Gabriella Cilmi, who's Italian with some Albanian. From the most recent manic phase of the 15-year cultural excitement cycle, 2010: