> Owing largely to the culture war, American Catholics have provided decisive support to the party that calls global warming a hoax.

You’ve maybe been looking at polling data that breaks out White Catholics (but not Catholics as a whole) as a subgroup and not realizing how much work the “White” part is doing. (Though, even there, its only a slight majority of White Catholics that support the Republican Party; while Catholics as a whole have a slight majority supporting the Democratic Party.)