Also, your assertion that the KJV was deemed "The Bible" for over 300 years is without historical support or reference. In other words, it's your opinion, and is without merit in a discussion of facts.
Such argument is also very weak. LXX has been "The Bible" for 2500 years and Latin Vulgate is for 1700 years.
But they do not care - they have double standards. If it is about the KJV, its a key argument, if it is about "corrupted texts", its is not important argument at all...