Larry, there's an old saying that goes like this: "If it walks like a duck, quacks like a duck and smells like a duck, than chances are that its a duck!"
Likewise, if Domition enforced Emperor worship as he did as a test of loyalty to himself and the empire (and remember that in the east there were many temples dedicated to the imperial cult) and Christian and Jews refused to do this and thus paid the penalty of their noncompliance with their lives, then YES, I'd suggest they were being persecuted.
Tacitus was no fool, I'm sure he researched the question thoroughly before he wrote about it, and such rough times would surely endure long and with clarity in the early churches memory. I also suspect that Tacitus wasn't a liar either or a fantasist.
The fact is that there are a number of opinions held by Christians regarding the Book of the Revelation.
Some take a Historicist view, others the Preterist view, others the Futurist view, others the Spiritualist view and still there are others who take views comprised of a mixture of these or who like myself take no view at all. And within these "Broad" views there are a number of opinions about who or what constitutes the two beasts of
Revelation 12 & 13, not to mention many other issues as well......
so the way I see it is that no view constitutes the final word on this....... and yes Larry, that includes the Preterist view, even your particular position within it.
IMHO the Preterist view doesn't fit enough of the prophecy of the Revelation (or other prophecies) to be viable.
e.g. From my study of Ancient Roman history, I understand that at no time was the Roman army over a million men..... it was certainly much smaller that this.
How then do you explain Revelation chapter 9 where it speaks of some enormous force of 200 million Horsemen preparing to attack God's perople presumedly at Jerusalem.... at least the Preterists I've read believe that this was the army's target...... although they suddenly become change tack and move away from Person Centred "Beasts" and such and say that it was to represent a large army! Good grief; what an understatement! Modern China would be hard pressed to assemble, arm and control such a force! Ancient Rome had no hope of doing so!
Give it a break Larry and allow us skeptics to continue to be so, while holding fast that which you believe if you must!