I had a manager in a previous job tell me it was my fault for not warning them that it would go wrong (which I had, in writing, I had the emails (plural) and meeting notes and recordings of the meetings) and then it shifted to "well you should have gotten the message through to me, it's not my fault you didn't".

There is a certain point where you just have to let it go, it's a "Scorpion and Frog" situation with some bosses.