Forget the testimony. Gather the evidence, and charge them for censorship. It is illegal, as O’Keefe pointed out, because they are representing themselves as a platform which in legal terms means they claim NOT to censor. There is abundant evidence that they do, as O’Keefe showed by just doing a few search terms and comparing the results. This is elementary law enforcement work not happening here.
And yes to antitrust action as well, but that is law enforcement again.