Do you question the teaching, or how and why the spiritual figures said what they did.
Or do you take everything the book says to be 100% literarly and can not be question at all?
If you don't ask questions, how do you realize the truth in the teaching by your self?
Revelation was written by a psychic, and psychics use various parts of their brains that are made to process normal senses to process ESP. As a result, they see visions and hear sounds that have nothing to do with reality, then they need to rely on their experiences in order to interpret the symbols. For example, candles might mean churches to them.
The human brain is not designed to process ESP, and this is why interpretation is necessary.
But, since Revelation is so abstract, most people don't understand it (at least not right away). First they must realize that there is a message in all of that, secondly, they must dedicate some time to understanding what that message is.
We must also bear in mind that kings and popes rewrote sections of the bible, so they might not be the word of God any longer. There are even parts of the bible that contradict other parts of the bible (so we know that there are errors somewhere).
Despite all of that, the bible is the only thing that we know about God (except what we feel about God, and except for psychic visions).
So, we must accept that some bible (probably the oldest version of the bible) is the most accurate version.
This is why the work of Reverend Melissa Scott (wife of the late Reverend Gene Scott) is so very important. She has a team of researchers translating ancient texts in various languages to discern the true meaning of the bible.
It is important to understand that spreading the word of God is fine, but killing others over their beliefs is not. Our political and religious leaders should rule with patience and compassion, and not use war (or torture) as the first method. Diplomacy comes first.
There is much good in the bible, but potential for much harm (as history has taught us).