It's not even so much that he gave her a second chance, but apologized to her for attacking someone verbally, like she was somehow a victim of something. I haven't watched his content in some time but, I didn't think he would be this permissive of harassment. He seemed like he would be more principled and hold people to the same standard regardless of their position or ideological similarities.

She also went on to harass and berate Boogie according to his most recent video, it seems like she has been told she can get away with anything and treats people around her accordingly. Hank Green is simply reinforcing her ego and self importance, be groveling at her feet.

I haven't seen anybody dredge up any specific example of Sargon even harassing her previously, I have heard he simply refuted her points and ideology, though I haven't seen much of his content myself. But if she is accusing him of past acts of harassment, then it is on her to present evidence of said harassment.

And the vague accusation that his fans attacked her on his behalf is pretty weak unless there is evidence that he told them to do so. If they did it on their own, he's in no way responsible for their actions. And given her behavior and general attitude, I am not inclined to believe her claim.