Why is the temple's destruction in AD 70 discussed alongside the second coming? Similar events bracket both

Similar events bracket both the AD 70 destruction and the future return: armies/tribulation, destruction of the temple, false Christs. Jesus gives the believers in the first century a warning that protects them from AD 70 (when you see armies, flee). In the future, a rebuilt temple will also be destroyed — the futurist temple is not a glorious event (built in ignorance or rejection of Christ) but a fulfillment of prophecy. The structural weaving of past and future fulfillments is characteristic of partial/total prophecy.