No reasonable person could take that as incitement. So the only logical answer is anti competitive behaviour, or political manipulation/interference.
There’s no way you believe he was doing anything else. You’re basically pushing for the denialability part by pretending to be innocently surprised.
No.
The defendants will unquestionably be using the "Trump told us to" defense.
Trump violated the terms more often and worse than regular people who were removed from the platform. Thousands of regular people kicked off for violating the terms and it's Donald Fucking Trump and Parler that gets folks in an uproar? Over things that happen all the time? By long standing service agreements? What?
However, I think both his case and yours is undermined by the very, very strong circumstantial evidence that after his lawyer, Giuliani, called for "trial by combat" and he said that he would personally lead the crowd in a march on the Capitol on Jan 6th the violent insurrection actually took place is a very strong argument that he incited the uprising.
Furthermore, the fact that even as these Trump supporters were occupying the Capitol he said that he "loves them", that also undermines any argument that he did not incite sedition.
For what it’s worth, I don’t think what Trump said was incitement, or even close to it. Irresponsible? Yes. Incitement? No.