Tit 3:9 But avoid foolish questions, and genealogies, and contentions, and strivings about the law; for they are unprofitable and vain.
Tit 3:10 A man that is a heretic after the first and second admonition reject;
Tit 3:11 Knowing that he that is such is subverted, and sinneth, being condemned of himself.

A man is not a heretic because he rejects the KJV, but because after he asks foolish, unprofitable and vain questions, he rejects the admonition given him.

If the hat fits, wear it.