A Use for the Litany of Tarski

The only possible response to this alleged pro-choice argument (from someone who was pro-life until she got pregnant) is the Litany of Tarski:

If the sky is blue

I desire to believe that the sky is blue

If the sky is not blue

I desire to believe that the sky is not blue.

The fact that someone has a motive to believe X is not any kind of argument for X. It is better to be a hypocrite than to lie to yourself.