You're absolutely correct, of course. But Christians have always before engaged in mere wishful thinking about it, without the substantial evidence we now have for its actual imminence. For example, Jesus instructed us to take the Gospel to the entire world before the end could come, but the practical means for doing that have never existed, meaning that any expectation of the end times was therefore nonsensical.
However, recently these significant phenomena have occurred, for the first time:
* the reestablishment of Israel after two millennia, as predicted by Moses
* the appearance of the escalating signs of the end, as predicted by Jesus
* the technology, finally, as predicted by Daniel and Jesus, to take the Gospel to the entire world, via safe worldwide transport, television/radio, and internet.
At some point the wishful thinking must transform into reasoned expectation, and events strongly suggest that the time has come at last. I do not expect my grandchildren to have their own grandchildren.
I think this one can be found at any time, sometimes even more so than today.
* the technology, finally, as predicted by Daniel and Jesus, to take the Gospel to the entire world, via safe worldwide transport, television/radio, and internet.
Our true global reach is a novelty, but people in the past didn't realize how much of the world they were unaware of.
the reestablishment of Israel after two millennia, as predicted by Moses
That's new.
I'm not saying you couldn't be right in your expectations today, just emphasizing that people in the past did have reasonable expectations of Christ's return, given the information available to them.