Earlier quoted context omitted.
Sure, it's up to interpretation, but I think we're fooling ourselves a bit to say he didn't incite violence. People raided the capitol on his behalf. His rhetoric must have had something to do with that.
“Everyone” collectively knowing someone incited violence unequivocally is very different than proving, in a court of law, that said person incited violence. As another commented, it’s actually really difficult to do because you must prove intent and state of mind. It’s part of why I’m surprised that’s the only charge on the impeachment, despite there being a potentially more clear cut issue, legal wise, that happened…
Proving criminal liability is not required[0] in an impeachment trial.