Not true!! Bible says, EVEN SO, COME LORD JESUS.
Which means, Jesus will come when God decides the time is right .. not when “every prophecy is fulfilled”.
Should we be prepared ..?? of course .. but we cannot put God in a box and say if every prophecy is not fulfilled, then it’s impossible for God to send Jesus. If we think this way, we have robbed God of his sovereignty.
Not arguments from me... ;-)