It appears from what you have written, that you don't have much knowledge on textual matters, as your approach is very simplistic and wrong.
It matters nothing, if the modern versions of the Holy Bible have 1 million manuscripts, and the KJV 5. These 5 can be much more reliable that the whole million. All manuscripts are only "copies", as we do not have the original autographs, of either the Old or New Testament. So, if the oldest "copy", like the Codex Vatacinus, which dates from the middle of the 4th century A.D., was an inaccurate one, and full of intentional and unintentional "corrections", like the Jehovah's Witnesses do in John 1:1, where for theological reasons, they say, "and the Logos was a god", or changed or removed the word, then all "copies" thereafter that follow their text, will also follow their error. Sadly the history of the text of both Testaments is not taught with much deepness these days, and the greater majority of modern "scholars" are ignorant to most of the evidence that really matters.
I will give a couple of examples. The first being the "woman taken in adultery" (John 7:53-8:11), where the majority of modern versions, either omit the words completely, or include them in brackets and say something like, "some manuscripts have this", etc. While it is true, that the oldest surviving Greek manuscript that does have the passage, is of a late date, the Codex Bezae, of the 6th century. Yet, we have the solid testimony of the scholar, Jerome (of the Latin Vulgate), who wrote over 150 years earlier, that this passage was present "in many Greek and Latin codices", which obviously did not survive, but the fact is, that it was indeed part of John's Gospel, 150 years earlier! The KJV has the story. The second example that I want to show, is the ending of Mark's Gospel, which again is either removed or marked as doubtful in the majority of modern versions. One of the greatest textual scholars the Church has ever had, John Burgon, did a huge study on this passage, and has shown beyond any doubt, that the words that are "disputed", did form part of the original Gospel of Mark. Over 100 years later, no one has been able to prove his work wrong!
As for the modern versions, I shall quote from one of their very own "champions", Bruce Metzger:
"Lucian influenced the form of the New Testament, and parts of the Old Testament which were used, and are still used, by millions who never heard of his name" (Chapters in the History of New Testament textual criticism, p.27)
Here we have the name of one Lucian, who died in A.D., 312 whose Greek New Testament (and some of the Old), has influenced the majority of the modern versions that we have today, that are based on textual families that derive from his text. This man is known in Church history as the "father" of the arch-heretic, Arius, who taught that Jesus Christ is a mere creature, and other blasphemies! Yet his work is widely used in translations even this day!