I admit that there are people for whom even the existence of God is a big question. My answer is that I do not address them, but that I presuppose a minimum of reason in my reader. Identify the informal fallacy committed in the above statement.

The writer sidesteps opponents by recasting them as lacking basic reason.

Those who genuinely question the existence of God are dismissed as not his intended readers.

He presupposes a minimum of reason in his reader and thereby paints doubters as unreasonable.

Rather than meeting their real doubt, he substitutes a caricature that is easy to set aside.

Refuting this distorted, weakened version of the opponent is the straw man fallacy.