Do you also believe the Great Tribulation has already occured then?
I believe that the Tribulation prophesied by Christ when He said, "This generation shall not pass, till all these things be fulfilled", did in fact occur in AD 66-70: the time, times, and half-a-time of the three-and-a-half years-long Jewish Wars.
Christ said that such a tribulation would occur within the generation of His listeners, and He was proven correct. (Unsurprisingly -- Him being God, and all).
And there you have it!!! That ALWAYS blows there theology right out of the water IMO.