Jesus promised to return but gave no indication of when
I hear what you mean but then how would you explain the the rider of the white horse in Revelation and the other riders famine, disease, war in connection with the white horses’s rider? These riders would result after Satan is ousted to earth and the birth of the kingdom. All of this is going on for a time period with nothing going on as far as Christ’s obvious return before there is a climax with God taking action. While famine, war and disease are commonplace on the earth throughout history, the white horse connected to it is unique. All of this is part of the return of Christ. How long it would take from the start of riders until the manifestation of Christ, the Bible doesn’t say but if you think that the return of Jesus is about embracing him with open arms with nothing else happening is not how his returned is explained in the Bible.