Main reason that I am against KJVO is that it cannot by proved by either the Bible nor textually!I'll tell you what the real reason is most of you reject the KJVO position.
Most likely some admittedly over-zealous and therefore possibly offensive KJVO guy early on in his Christian experience ruffled your older sanctified, more intellectual, feathers. So you blew up like an indignant peacock.
And now you live-out that experience and militate against the KJVO because pride forces you to do so as you're committed now.
Some of you would be amenable to the position and see its merits, but you'll die snubbing it rather than correct your over-reaction to that KJVO-nutcase's over-zeal; not to mention all the flack you'll know you'll face since you yourself dished it out.