That is a GROSS MISUNDERSTANDING if not a misrepresentation. Please read the preface called
"The Translators to the Reader". The KJV translators acknowledged the existence of other English translations, but their objective was to make
one translation which would be outstanding, and that is what they achieved.
This is just ANTI-KJV PROPAGANDA without a shred of truth. The King James Bible continues to be the most accurate and reliable English translation in spite of all the venom thrown at at. As to *archaic* there are now up-to-date versions of the KJV which have already addressed the issue.
The Catholic influence (through Codex Vaticanus) is quite evident in the modern versions.
Indeed the RSV is recognized as a Catholic Bible.
Revised Standard Version Bible - Catholic Edition | RSV Bible | The Catholic Company
What Christians should understand without the shadow of a doubt is that every modern translation since 1881 represents
a corrupted Bible text in Hebrew and Greek. Which means these are counterfeit bibles.
However, there was
a conspiracy to overthrown the Authorized Version and replace it with the Revised Version on the basis of a totally different Greek text.
There was gross deception involved is making this radical change. Unfortunately, the majority of scholars and theologians in the 19th and 20th centuries went along with this hoax, and now the modern versions are promoted as being superior, when they are in fact inferior. There are several books written by actual textual scholars which provide the full details (for Christians who prefer the truth to propaganda).