When you think about it, it's more a thread about Christians. That includes ALL who profess Christ as their Savior.
And, of course, you know the quote,"Were not our hearts burning within us while he spoke to us on the way and opened the scriptures to us?" (Lk. 24:32).
That type of heart burn has nothing to do with digestive troubles.
Sometimes people attack just to attack, not to show their lack of intelligence or charity, even though that is sometimes the result.
Don’t be so sure they are aware of the fullness of Holy Scripture. They tend to select, and then mangle, only a few verses of a redacted Bible to support their hatred and malice toward Christ’s Church.