The Book of Revelation is difficult to understand
Not really.
Take away the images of "horsemen" and other guff and it simply speaks of a world in chaos in an age chaos. Which , dare I say it, we seem to be going through in our time.
At Matthew 24:3-14 Jesus makes it quit clear when a disciple askes: “Tell us, when will these things be? And what will be the sign of Your coming, and of the end of the age?” New King James Version
4 And Jesus answered and said to them: “Take heed that no one deceives you.
5 For many will come in My name, saying, ‘I am the Christ,’ and will deceive many.
6 And you will hear of wars and rumors of wars. See that you are not troubled; for all these things must come to pass, but the end is not yet.
7 For nation will rise against nation, and kingdom against kingdom. And there will be famines, pestilences, and earthquakes in various places.
8 All these are the beginning of sorrows.
9 “Then they will deliver you up to tribulation and kill you, and you will be hated by all nations for My name’s sake.
10 And then many will be offended, will betray one another, and will hate one another.
11 Then many false prophets will rise up and deceive many.
12 And because lawlessness will abound, the love of many will grow cold.
13 But he who endures to the end shall be saved.
14 And this gospel of the kingdom will be preached in all the world as a witness to all the nations, and then the end will come.
It matters not in my opinion, whether one chooses to believe the above was so called "prophesy", but I don't think that it can be denied that all the above mentioned are things that our world and its people are experiencing now, in our time in the 21st century and in our age.
It may be asked , well how did he \ Jesus know? the answer to that is simple: because it had happened before, in another age.