For a lot of people they really want this story to be "ha ha the left turns on itself". And the left sure does. They're damned good at it. People love to punish, and when the real offenders are largely immune to punishment, they'll take it out extra hard on those they can get their hands on.
But there are ways for it to end. She's putting herself up prominently and demonstrating what a genuine apology looks like. She's not hedging, excusing, or turning it around. She's accepting that an apology is more than just saying that you're sorry. Which means that people get a chance to accept the apology.
Something we don't get a lot of practice in. So maybe we'll fail at it. That wouldn't be surprising. But it has to start somewhere, and maybe it'll start with her.
Edit: A gold standard apology is 1) admitting the transgression, 2) understanding the harm it caused, 3) delivering an apology to those affected, 4) pledging to make amends, 5) changing behavior going-forward
She's apparently very good at her job, and I hope it means that she can find a place to rebuild her reputation. There should be one, especially since had already taken responsibility for this.
But Teen Vogue wasn't the place for it. Especially since she was a teen when she sent these racist tweets. The Internet means that mistakes you make as a teenager will come back to haunt you. Courts can seal arrest records but the Internet is public. The things you say are heard, and seen, and they matter.
So I hope this is a minor setback in her career, and that they can find somebody equally talented.