It's not clear to me. I think they have gone sadly astray in what they think about the God of Abraham. So, one might say, they (or many of them) effectively worship a demon. But their increasingly fuzzy and unclear and even perverted intention was allegiance to the God of Abraham.
However, if you're going to play the game your way, you need to get clear about what is an exercise of infallibility and what isn't.
The teaching on Papal Infallibility does NOT say that everything a pope teaches is infallible. So the first thing one has to do is to look for the clues to a claim of infallibility. Usually one will find words like "We declare and define and pronounce" or something like that. There may be an anathema or two in there.
So even if Nostra Aetate is wrong, that wouldn't touch the doctrine of Papal Infallibility.
How much clearer can it be than their book saying the exact opposite of what scripture tells us ?
One book teaches us to love our neighbors the other tell them to kill all the Jews and Christians .
Do you think God plays dirty tricks on people to fool them into doing the opposite ?
Jas 1:13 Let no man say when he is tempted, I am tempted of God: for God cannot be tempted with evil, neither tempteth he any man:
Make all the excuses you want . The fact is that you can’t really spin this around as not being official church doctrine.