Not Christianity in all its forms, sure, but Catholicism absolutely.
Just because Aquinas questioned if "pagans" could be virtuous in spite of their beliefs, does not mean he didn't believe they were destined for exclusion from God. He might have written more positively about them than his counterparts and colleagues in the church, but he was looking down his nose at them.
I don't consider adherents to a dogma reaching out in "charity" to be a relationship of equitable footing. It reminds me of that old English nonsense of "noble savages". Just because they called them "noble"...
edit:
Happy to remove my personal opinions.
I'm not making up these perspectives; this is dogma according to the Catholic Encyclopedia: https://www.catholic.com/encyclopedia/paganism. And it's literally in the abstract of the first paper linked to.
Aquinas, as a function of his adherence to that dogma, presumed all Pagans to be doomed as a function of their not adhering to the same dogma. He considered them possibly capable of virtue, but morally inferior.