if you don't believe in them, regardless of your faith in Christ,
That doesn’t truly represent the faith because WT publishes it can be wrong admitting human error in interpreting the Bible. It stands to reason then that wt does not teach damnation standing on belief in wt error.
Think of an approach to study the Scriptures like solving a crossword puzzle where everyone agrees to solve the puzzle together and abide by the same rules. If you don’t, you are not part of the group.
Also, if you don’t agree with the way of JW and believe in a better way, you answer to God not to JW. Pursue what ever way one likes. JW are happy with their way and approach to study and understanding the Bible and living compared to the standard Jesus gave.