One aspect of amillennialism that deeply troubles me is the denial of a future kingdom for Israel. Those who advocate this position believe the Old Testament promises made to Abraham, Jacob, David, and Israel are fulfilled by Jesus Christ and His church in this current age, a spiritual millennium.
They support this assertion through an allegorical interpretation of large sections of prophetic Scripture in both the Old and New Testament.
I believe this disregard for the literalness of prophecy weakens the integrity of the rest of God’s Word. Though often not right away, eventually many non-prophetic passages fall victim to those wishing to overlay a symbolic interpretation upon them that conforms to what they believe.