He knew Christians and sought to kill them. If he is already establishing the divinity of Christ in 60AD it means Christians were doing the same. Paul also mentions Peter in 1Corinthians.
Listen, I m not saying Christ did not exist, it is a matter of fact that he did. All I am saying is there is a lot of story telling going on in the bible of the NT as well as the OT. And yes even back then , politics were involved.