Proponent of King James bible themselves points the differences between King James and modern standard. If we assume the modern translation is accurate, that means KJV must be quite wrong then.
The doctrines that they complain about are significant:
Let the heathen rage, God is still on His throne! To those who love the Lord Jesus Christ enough to protect the Doctrine of Christ (2nd John 1:9), the King James Bible is unquestionably the ONLY Bible standing true to that purpose. ALL modern versions attack the deity of Christ, His virgin birth, the blood of Jesus, the Godhead, the reality of Hellfire, and the sinlessness of Christ. Don't believe it? Hundreds of words, phrases, and even entire Bible verses were removed from the Word of God by the NIV butchers. Take a look at all the words REMOVED just from the New International version alone...
Whereas the King James Bible mentions the "Godhead" three times, the NIV has completely removed the word. You won't find the word "propitiation" in the NIV either. In fact, all of the following words have been removed from the Bible by the NIV butchers: regeneration, mercyseat, Calvary, remission, Jehovah, immutable, omnipotent, Comforter, Holy Ghost, Messiah, quickened, infallible, et cetera. One of the most blasphemous omissions in the NIV is in John 3:16 where Jesus is no longer proclaimed as the "only BEGOTTEN Son of God."
Yes, that's right, the NIV butchers removed the word "begotten" from John 3:16. How in the name of truth and justice could any professed Christian use the New International Version? Yet, it's the most popular bible version sold on the market today. If I had a billion dollars, I'd make an offer to churches all across America. I'd exchange brand new King James Bibles for their perverted NIVs. I'd give them new Bibles for their old corrupt bibles. They would first have to give me their NIVs so I could BURN THEM! I'd burn every NIV I could find.
That's not all that the wicked NIV deceivers took out of the Bible. The word "sodomite" is completely gone, as is the words: fornication, trucebreakers, winebibbers, carnal, slothful, unthankful, effeminate, backbiting, vanity, lasciviousness, whoredom, devils, Lucifer, damnation, brimstone, and the bottomless pit. I'm not kidding, go check for yourself! All these words in the King James Bible have been stricken from the New International Version. We ought to call it the H.I.V., because it's more deadly than the AIDS virus.
Atheists have their own complain about KJV bible
The King James Version of the New Testament
The King James version of the New Testament was completed in 1611 by 8 members of the Church of England.
There were (and still are) no original texts to translate. The oldest manuscripts we have were written down hundreds of years after the last apostle died. There are over 8000 of these old manuscripts, with no two alike.
The King James translators used none of these, anyway. Instead, they edited previous translations to create a version their king and Parliament would approve.
So, 21st Century Christians believe the “Word of God” is a book edited in the 17th Century from 16th Century translations of 8000 contradictory copies of 4th Century scrolls that claim to be copies of lost letters written in the 1st Century.
That’s not faith. That’s insanity.
This is what atheists claim. If the most popular version of the bible in history is so messed up, can we believe that God take care of gospels?
I've also heard that King James are actually homosexuals and many verses are heavily influenced by political interests at that time. Also many important christian doctrines, like shedding of blood is necessary for forgiveness of sin (which is nowhere mentioned in the bible explicitly) is added. In fact, that's why we have King James only movement. Namely that they defend doctrines only relevant if your bible is king james.