It’s easy to make her sound like a victim when you ignore the fact that she did everything in her power to rig the DNC primaries in her favor AND propped up Trump’s early campaign as much as she could. The situation we find ourselves in is certainly not exclusively her fault but she definitely deserves more of the blame than any of us do. She set the board exactly how she wanted and still couldn’t win the game.
Illegal and anti-democratic aren’t always the same thing. You can certainly be one without the other. Though to be clear there have been allegations of outright illegal activity by the Clinton campaign and the DNC as a whole during the 2016 election, but the specifics are fuzzy in my memory and that’s not what you’re asking about so I won’t attempt to address it further here.
Here’s the first article I read through after a quick search to find a source for you. If you don’t like the source I’m sure you can use the timeline and references it contains to find something from a source you prefer.
https://www.politico.com/magazine/story/2016/11/hillary-clinton-2016-donald-trump-214428/
Here’s a couple relevant snippets: