Based on the outward, they're not. Just as with Jimmy Carter who also said he was/is a Christian. When there is such insurmountable evidence that people haven't the remotest foundational understanding of what they say their core belief is, then it's an enormous clue.
But otherwise, you are correct, we do not have the insight into their hearts as such.
"But otherwise, you are correct, we do not have the insight into their hearts as such."
Its not so much as that, IMO we dont have insight into God. People like to naysay and condemn but I beleive in a loving God and there are many many good people in this country today.
When we get to the same point as the Dutch then I will worry.